World 20

World 20 is a world taking place in a spooky forest in Dr. Mario World. The first area is available as of 12 AM PT on Sept. 24, 2020, while the second area, challenge stages and special stage are available as of 11 PM PT on Oct. 7, 2020.

When an area is cleared, Broozers, Boos, Peepas and Swoops appear. The viruses featured in the regular stages are red, green and light-blue.

Area 1

Image	Stage	Best Doctors	Overview
	Stage 761	Dr. Mario Dr. Baby Peach	The objective of this stage is to eliminate all viruses (29) and collect all keys (8). This stage introduces electric exploders, which will send out electric shocks to three nearby objects when matched or destroyed. In this stage, there are three rows of viruses with electric exploders in the middle, where two of them are inside barrels. Cages are found between the keys and doors in the second, fourth and sixth rows, with their corresponding lock blocks in the barrels in the topmost row inside barrels where viruses inside barrels are also found.
	Stage 762	Dr. Baby Rosalina 8-Bit Dr. Mario	The objective of this stage is to eliminate all viruses (21) and collect all coins from Coin Blocks (30). In this stage, four rows containing Brick Blocks and Empty Blocks are lined up in the odd-numbered rows within the first seven rows, and below each of those rows there are floatie viruses. The Brick Blocks in the odd-numbered columns are Coin Blocks, while the others contain hidden electric exploders.
	Stage 763	Dr. Morton Dr. Fire Rosalina	The objective of this stage is to eliminate all viruses (56). In this stage, there are nine sections group in three-by-threes. The groups in the corners each contain nine viruses with five of them being clouded, the groups at the sides each contain an electric exploder in the middle of Brick Blocks (containing hidden viruses), crates and ice fans, while the middle group contains four clouded viruses with a shell in the middle.
	Stage 764	Dr. Baby Wario Dr. Lemmy	The objective of this stage is to eliminate all viruses (29) and collect all purple coins (32). In this stage, there are barrels where they all contain purple coins (caged and uncaged). Bubbles containing viruses are in the second to seventh rows, while the eighth row has regular viruses. Purple coins are unlocked in the following sequence: The 14 coins within row #2 to row #4, initially within the partially-damaged barrels. The 18 coins within row #5 to row #8, initially within the undamaged barrels.
	Stage 765 (Hard)	Dr. Fire Peach Dr. Koopa Troopa	The objective of this stage is to eliminate all viruses (25) and collect all keys (2). In this stage, the keys and doors are in the second and eighth columns, where the doors are behind cages and their corresponding lock blocks between the keys and doors inside bubbles. Electric exploders are also inside bubbles between the keys and doors. The Brick Blocks and crates are arranged in a checkered pattern, where the Brick Blocks all contain hidden viruses.
	Stage 766	Dr. Baby Mario Dr. Wendy	The objective of this stage is to collect all coins from Coin Blocks (36) and collect all virus coins (5). In this stage, the cages containing Brick Blocks and crates are formed in a pattern that spells "2=2", where viruses surrounding barrels containing lock blocks are within the gaps in each character. All the Brick Blocks in this stage are Coin Blocks, where large virus coins are located above and below them. The filled flasks in this stage will shoot out either floatie viruses or exploders.
	Stage 767	Dr. Dolphin Dr. Koopa Troopa	The objective of this stage is to eliminate all viruses (14) and destroy all Brick Blocks (27). In this stage, two sets of fully-frozen Brick Blocks in the form of wavy lines are found, where between them are Brick Blocks, viruses and bubble machines. An exploder jar is located at the left of the ninth row.
	Stage 768	Dr. Ludwig Dr. Goomba Tower	The objective of this stage is to eliminate all viruses (15), collect all purple coins (14) and collect all keys (8). In this stage, the keys and doors are in every column except for the middle column, where the keys are fully-frozen and the doors are half-frozen. There is nothing between the keys and doors in the four leftmost columns, but within the five rightmost columns, there are floatie viruses checkered among fully-frozen purple coins. On the eighth row, there are four crates on the left and four pop cannons on the right. A shell jar is located in the middle of the seventh row.
	Stage 769	Dr. Lemmy Dr. Peach	The objective of this stage is to eliminate all viruses (30) and collect all keys (9). In this stage, there are three pop cannons each in between crates. Each pop cannon is aimed towards half-frozen viruses and exploder. Of the undamaged barrels, the two middle barrels in the topmost row contain viruses while the rest contain keys and doors. The partially-damaged barrels contain colorful crates and flasks. Most of the Brick Blocks contain hidden viruses except for the middle one in the topmost row, which contain a hidden door. The filled flasks in this stage will shoot out colorful crates.
	Stage 770 (Hard)	Dr. Larry Dr. Dry Bowser	The objective of this stage is to eliminate all viruses (71) and collect all virus coins (52). This stage only contains red and light-blue objects. At the beginning of this stage, there is a row of viruses with a gap in the middle below a row of Brick Blocks, which contain four electric exploders. The initial four rows in the beginning and the next seven revealed rows contain viruses checkered among bubbles containing colorful crates and electric exploders each with a virus coin behind them. The viruses from the sixth-revealed row to the tenth-revealed row are half-frozen. Within the eighth-revealed row to the tenth-revealed row, there are three virus coins behind crates, half-frozen viruses and exploders. The final-revealed row contains a row of Empty Blocks. This stage will scroll for one line each time enough objects are cleared or enough capsules are added to the stage and will stop after 11 lines are introduced.
	Stage 771	Dr. Donkey Kong Dr. Wendy	The objective of this stage is to collect all coins from Coin Blocks (24) and collect all virus coins (4). In this stage, there are four rings of purple coins (caged and uncaged) each with an exploder inside and covering a large virus coin. The fifth row contains Brick Blocks that all contain coins, while the middle column contains bubbles with floatie viruses inside. Purple coins are unlocked in the following sequence: The coins in the columns #4 and #6, for a total of 16 coins. The rest of the coins in the stage, for a total of 32 coins.
	Stage 772	Dr. Diddy Kong Dr. Fire Rosalina	The objective of this stage is to eliminate all viruses (12) and collect all keys (8). In this stage, there are two rings of fully-frozen exploders and barriers between the keys and the doors. Pop cannons are located in the middle column, the first two columns and the last two columns. Fully-frozen viruses are located in the first three rows in a checkered pattern with barriers in between.
	Stage 773	Dr. Fire Peach Dr. Baby Mario	The objective of this stage is to eliminate all viruses (26) and collect all coins from Coin Blocks (36). In this stage, floatie viruses are surrounded by crates, and surrounding it are Brick Blocks in a checkered pattern. Between the Brick Blocks are pop cannons and bubbles containing viruses. The 12 Brick Blocks nearest to the crates are Coin Blocks.
	Stage 774	Dr. Ludwig Dr. Toad	The objective of this stage is to collect all virus coins (29). In this stage, frozen viruses are grouped in fours, with electric exploders (in and out of barrels) placed around the sides and are all covering virus coins. The virus coin in the middle of the stage is covered by electric exploders (in and out of barrels), exploders and crates.
	Stage 775 (Hard)	Dr. Baby Luigi Dr. Kamek	The objective of this stage is to eliminate all viruses (28) and collect all coins from Coin Blocks (36). In this stage, floatie viruses are placed in columns #3, #5 and #7 with pop cannons below them. The barrels contain viruses, while all the Brick Blocks are Coin Blocks. Within the same rows as the Brick Blocks are fully-frozen crates.
	Stage 776	Dr. Waluigi Dr. Luigi	The objective of this stage is to eliminate all viruses (28) and collect all purple coins (30). In this stage, the crates separated viruses and dust viruses into two groups, where they are arranged in a checkered pattern. Purple coins (caged and uncaged) are found in the first eight rows. The lock blocks are in the first row in between fully-frozen viruses and in the middle of the third row, with the corresponding cages in the second row and above the green lock block. There is a shell and an exploder behind the green cages, while the other cages contain purple coins. Purple coins are unlocked in the following sequence: The coins within rows #4 to #8, for a total of 16 coins. The 4 coins in row #3. The 2 coins in row #1. The 8 coins in row #2.
	Stage 777	Dr. Blooper Dr. Baby Wario	The objective of this stage is to eliminate all viruses (21) and collect all virus coins (30). In this stage, there is a border of Brick Blocks and purple coins surrounding eight viruses in the middle. All the Brick Blocks contain floatie viruses. Within rows #1 and #8, there are bubbles each containing a caged coin, with a bubble containing a shell in the top-right corner. Purple coins are unlocked in the following sequence: The coins that are part of the border with the Brick Blocks, for a total of 13 coins. The coins inside bubbles starting from rows #1 and #8, for a total of 17 coins.
	Stage 778	Dr. Larry Dr. Daisy	The objective of this stage is to eliminate all viruses and collect all virus coins. In the beginning of this stage and the next four revealed rows, there are rows of barrels containing exploders in the second and third bottom-most rows and viruses in the others, where they are between Brick Blocks containing hidden viruses. In the last nine revealed rows, there are four groups of viruses and barrels among Empty Blocks, crates and an exploder jar, where the barrels contain both normal viruses and floatie viruses. This stage will scroll for one line each time enough objects are cleared or enough capsules are added to the stage and will stop after 13 lines are introduced.
	Stage 779	Dr. Wendy Dr. Baby Peach	The objective of this stage is to collect all purple coins. In this stage, viruses are arranged in groups of two or three so that a capsule could be used to make a match, and most of those groups are half-frozen. At the bottom half, there are four groups of two half-frozen purple coins above bubble machines, while the top half has caged coins surrounded by bubble machines and barrels containing purple coins. The Brick Blocks do not contain anything. Purple coins are unlocked in the following sequence: The coins in the sixth and seventh rows, as well as the coins in the barrels, for a total of 16 coins. The 2 coins in the third row surrounded by barrels.
	Stage 780 (Hard)	Dr. Dry Bowser Dr. Baby Rosalina	The last stage of the first area, the objective of this stage is to eliminate all viruses and collect all virus coins. In this stage, the leftmost and rightmost columns consist of bubbles, in which a shell is located in the first row and every third revealed row on different sides. On the same row as each of the shells are rows of frozen viruses, with the sixth revealed row having fully-frozen viruses while the others have half-frozen viruses. Crates and colorful crates surround the frozen viruses except for the ones in the ninth revealed row. The last revealed row is a row of Empty Blocks. This stage will scroll for one line each time enough objects are cleared or enough capsules are added to the stage and will stop after 10 lines are introduced. When cleared, the rest of the first area in the world map gets cleared of viruses. Players also obtain the Broozer assistant upon completing this stage.

Area 2

Image	Stage	Best Doctors	Overview
	Stage 781	Dr. Fire Luigi Dr. Baby Peach	The objective of this stage is to eliminate all viruses (16). In this stage, there is a row of floatie viruses below a row of crates and above a row of electric exploders. Above the row of crates is a row of 7 floatie viruses, where they are below crates arranged in a checkered pattern.
	Stage 782	Dr. Larry Dr. Wendy	The objective of this stage is to eliminate all viruses (16) and collect all coins from Coin Blocks (18). In this stage, there are four groups each containing three fully-frozen viruses and an exploder surrounded by crates and colorful crates. Between the groups are viruses and electric exploders, as well as Brick Blocks (all containing coins).
	Stage 783	Dr. Lemmy Dr. Boo	The objective of this stage is to eliminate all viruses (32) and collect all keys (16). In this stage, there are two groups of dust clouds surrounded by barrels on the left and right sides, with viruses and two lock blocks in between those barrels. Of the viruses, the viruses in the second and ninth rows are caged. The bottom-most barrels in the leftmost and rightmost columns contain exploders and the bottom-most barrels in the second and eighth columns contain pop cannons, while the other barrels contain keys and doors. Of the dust clouds, the three leftmost ones in the sixth row and the three rightmost ones contain exploders and shells, the bottom-most ones in the two leftmost and two rightmost columns contain doors, while the rest are dust viruses.
	Stage 784	Dr. Peach Dr. Blooper	The objective of this stage is to eliminate all viruses (12) and collect all purple coins (12). In this stage, purple coins are found in the third, fifth and seventh columns in between ice fans. Between the purple coins are electric exploders and floatie viruses while between the ice fans are crates.
	Stage 785 (Hard)	Dr. Larry Dr. Yoshi	The objective of this stage is to eliminate all viruses (28) and destroy all colorful crates (26). In this stage, there are two groups of colorful crates in a checkered pattern, in which each of them have two rows of bubbles containing viruses and one row with only viruses. In between the two groups are two rows containing Brick Blocks and Capsule Plus each starting from +5. The Brick Blocks contain hidden Capsule Plus each starting from +5 and ice fans.
	Stage 786	Dr. Roy Dr. Baby Wario	The objective of this stage is to collect all virus coins (6). In this stage, each of the 6 virus coins are covered by clouded floatie viruses and crates. This stage contains a shell jar and a flask in the topmost row. The filled flask in this stage will shoot out Brick Blocks.
	Stage 787	Dr. Fire Luigi Dr. Baby Peach	The objective of this stage is to eliminate all viruses (25), collect all purple coins (21) and collect all keys (6). In this stage, the purple coins are surrounded by red cages, and beside the red cages are light-blue cages. The cages contain viruses, keys, doors and crates. The lock blocks for those cages are located in the topmost row each in between viruses.
	Stage 788	Dr. Baby Wario Dr. Koopa Troopa	The objective of this stage is to eliminate all viruses and collect all keys. In this stage, there are purple coins that surround a few viruses, where one group is caged and the other is uncaged. Some of the coins and doors are frozen. The yellow lock block is blocked off by two doors, which corresponds to cages that include a shell in the vicinity of a pop cannon that aims two other shells. One of those shells targets the light-blue lock block, which unlocks a portion of purple coins and a red lock block. The red cages include an exploder that targets a shell that will lead to a pop cannon that targets a number of viruses. Purple coins are unlocked in the following sequence: The coins in the seventh to ninth rows, for a total of 15 coins. The coins in the second to fourth rows, for a total of 11 coins.
	Stage 789	Dr. Dolphin 8-Bit Dr. Mario	The objective of this stage is to eliminate all viruses and collect all purple coins. In this stage, the purple coins (caged and uncaged) are placed in diagonal lines parallel to the cages. The lock blocks for those cages are located at the top-right corner, while the cages contain either crates, exploder jars or Empty Blocks. Half-frozen viruses are located in the top-left corner, the top-right corner and the uncaged exploder jars. Exploders are connected so that it reaches the only uncaged purple coin. Purple coins are unlocked in the following sequence: The middle coin in the first row. The second coin in the ninth row. The coins from the sixth column to the rightmost column, plus the second coin in the seventh row and the first coin in the ninth row, for a total of 10 coins. The rest of the coins, for a total of 9 coins.
	Stage 790 (Hard)	Dr. Ludwig Dr. Dry Bowser	The objective of this stage is to collect all virus coins. In this stage, bubbles containing exploders are located next to bubble machines, where Brick Blocks are directly above and below them. The Brick Blocks contain hidden viruses. The filled flask in this stage will shoot out Brick Blocks containing hidden viruses.
	Stage 791	Dr. Fire Rosalina Dr. Baby Mario	The objective of this stage is to eliminate all viruses and collect all coins from Coin Blocks. In this stage, two rows of dust viruses are in between three rows of Brick Blocks and two rows of Brick Blocks plus one containing Brick Blocks and viruses. The odd-numbered columns of Brick Blocks below the rows of dust and the even-numbered columns of Brick Blocks above the rows of dust are Coin Blocks, while the rest contain hidden viruses and hidden Capsule Plus (each starting from +5).
	Stage 792	Dr. Blooper Dr. Toadette	The objective of this stage is to eliminate all viruses and collect all keys. At the beginning of this stage are mostly barrels containing viruses, with a few normal and half-frozen normal viruses in the mix. Of the Brick Blocks, only the ones in the eighth row contain hidden viruses. In the first revealed row, there are three keys and two barrels containing shell jars. Barrels containing viruses are scattered in the first eight revealed rows, while the final revealed row contain doors in between Empty Blocks. This stage will scroll for one line each time enough objects are cleared or enough capsules are added to the stage and will stop after 9 lines are introduced.
	Stage 793	Dr. Baby Wario Dr. Fire Peach	The objective of this stage is to eliminate all viruses and collect all keys. In this stage, clouded pop cannons are arranged in an "X", with barrels vertically in between them and Brick Blocks next to them. Of the Brick Blocks, the ones below the fifth row contain keys, while the ones above the fourth row contain doors and the one in the fourth row containing a pop cannon. The barrels in this stage contain either viruses, exploders, barriers or pop cannons, with only the middle barrel in the third row containing a door.
	Stage 794	Dr. Roy Dr. Baby Luigi	The objective of this stage is to eliminate all viruses. In this stage, there are two groups of caged viruses between a line of ice fans with a pop cannon jar on one end and a shell jar on the other end. Near the pop cannon jar are two lock blocks, while near the shell jar is two caged exploder jars. The shells that are shot out from the shell jar will be inside bubbles. On the same row or column as the lock blocks are crates.
	Stage 795 (Hard)	Dr. Bowser Dr. Goomba Tower	The objective of this stage is to eliminate all viruses, collect all purple coins and collect all keys. In this stage, the shells and pop cannons are connected in a way that when the shell in eighth row is activated, the chain reaction will cause the frozen viruses and exploders to be cleared of ice, while the doors and the crate will still be half-frozen. The Brick Blocks contain hidden purple coins (caged and uncaged), except for the first two ones in both the third column and the seventh column, as well as the first coin in the topmost column. Purple coins are unlocked in the following sequence: The rightmost coin in the seventh row. The coins in the first column and the first, third and fourth coins in the third column, for a total of 7 coins. The 2 coins to the right of the door in the fifth row. The rest of the coins, for a total of 17 coins.
	Stage 796	Dr. Bowser Jr. Dr. Toad	The objective of this stage is to eliminate all viruses and collect all virus coins. In this stage, the viruses are scattered among colorful crates in diamond patterns, where bubbles containing exploders and half-frozen bubble machines are also found. The exploders that are shot out from the exploder jars will be inside bubbles.
	Stage 797	Dr. Wendy Dr. Baby Wario	The objective of this stage is to eliminate all viruses. In this stage, the viruses, dust clouds and barrels are arranged in diagonal lines, where barriers are also found. The barrels contain viruses, floatie viruses, barriers or Capsule Plus, while barriers are found in a few of the dust clouds.
	Stage 798	Dr. Ludwig Dr. Fire Mario	The objective of this stage is to eliminate all viruses and collect all keys. In this stage, there are two lines of caged exploders that separate two groups of Brick Blocks, where one group has two normal viruses. The top side has fully-frozen doors and the bottom side has fully-frozen keys. Each side also has a lock block and both a key and a door. Most of the Brick Blocks contain hidden viruses, while three of the four Brick Blocks between each pair of key and door with them have hidden Capsule Plus.
	Stage 799	Dr. Wario Dr. Donkey Kong	The objective of this stage is to collect all virus coins. In this stage, the Brick Blocks have virus coins behind them. The Brick Blocks all contain hidden floatie viruses. In addition to Brick Blocks, there are three pop cannon jars and one shell jar, as well as two pop cannons. The pop cannons that are shot out from the pop cannon jars will be hidden inside Brick Blocks.
	Stage 800 (Hard)	Dr. Lemmy Dr. Fire Rosalina	In the final stage of this world, the objective is to eliminate all viruses, destroy all colorful crates and collect all keys. In this stage, the keys are in the odd-numbered columns. At the beginning of this stage, there are three rows of viruses above the keys. In the two topmost rows (before the stage scrolls) and the next four revealed rows, there are six groups of four viruses in a row segmented by crates, where each group has two half-frozen viruses. The next six revealed rows contain alternating rows of viruses and colorful crates. In the next five revealed rows, there are two rows of bubbles with barriers inside sandwiched between three rows of viruses where the odd-numbered position of viruses are half-frozen. Doors are located in the final revealed row, where Empty Blocks are in between. This stage will scroll for one line each time enough objects are cleared or enough capsules are added to the stage and will stop after 16 lines are introduced. Once it is cleared, the remaining area of the stage map gets cleared of viruses, and players can access World 21. Upon completion, players earn a free Staff Ticket.

Challenge stages

Image	Stage	Best Doctors	Overview
	Stage 20A	Dr. Dry Bowser Dr. Roy	Within a 40 second time limit, players need to eliminate all viruses (39). In this stage, pink is the only color found. Besides the viruses throughout the stage, there are barrels, crates and electric exploders. The undamaged barrels contain viruses and electric exploders, while the partially-damaged barrels contain only viruses. Completing this stage awards the player 500 coins.
	Stage 20B	Dr. Bowser Dr. Koopa Troopa	Within a 50 second time limit, players need to collect all purple coins (34). In this stage, pink and light-blue are the only colors found. Purple coins (both caged and uncaged) are also found in five of the rows. The Brick Blocks in the eighth row contain hidden viruses. The barrels in the fourth and sixth rows contain floatie viruses and exploders, while the barrels in the second row contain caged coins. Other than that, the stage also has viruses in the first row and middle column, as well as exploders in the fourth and sixth rows. Purple coins are unlocked in the following sequence: The 5 coins in the ninth row. The 5 coins in the seventh row. The 8 coins in the fifth row. The 8 coins in the third row. The 8 coins in the second row, initially inside barrels. Completing this stage awards the player 500 coins.
	Stage 20C	Dr. Fire Rosalina Dr. Wario	Within a 57 second time limit, players need to eliminate all viruses (22) and destroy all colorful crates (36). In this stage, colorful crates are found within the odd-numbered columns within the sixth to ninth rows and the first and third rows, with the ones in the first row being half-frozen. Between the columns of colorful crates are half-frozen viruses, barriers and half-frozen pop cannons. In the fifth row, there are barriers with a fully-frozen shell in the middle. The second and fourth rows contain frozen viruses, while fully-frozen shells are in the middle of the first and third rows between the colorful crates. Completing this stage awards the player 1000 coins and a Staff Ticket.

Special Stage

Image	Stage	Best Doctors	Overview
	Special Stage	Dr. Fire Rosalina Dr. Dry Bowser	The objective of this stage is to eliminate all viruses (46). In this stage, there are two groups of dust clouds. The lower group of dust clouds contains 2 floatie viruses, 3 ice fans and viruses in the others, while the higher group of dust clouds contain 2 electric exploders and viruses in the others. In the middle of the stage, there are 9 fully-frozen electric exploders. To the left and right of the group of electric exploders are viruses placed among crates, and each side has 3 floatie viruses. More ice fans are found on the group to the left. Completing this stage awards the player 1000 coins and Dr. King Boo.

Profiles

• Dr. Mario World Twitter:
  • On Sept. 22, we showed the stages of next month. THESE are the correct ones added today. Thank you for your understanding.
  • Yellow: "The second half of the Halloween World has been added! And the special stage reward is King Boo (we secretly told you about that already). I wonder if Jack-o'-Lanterns taste good? Hmm..."

References

Category:Forests and Jungles Category:Dr. Mario World Worlds