World 8 (Dr. Mario World)

World 8 is a cosmic-themed world in Dr. Mario World. When the areas are cleared, Lumas of different colors appear, including yellow, blue, green, and red, along with Toads in astronaut suits, Star Bunnies and Octoombas appear. The viruses featured in the regular stages are red, green and light-blue.

Profiles

• Dr. Mario World Twitter:
  • Red: "Apparently new stages are gonna be added at 1 AM PT on Oct. 4. We might get to travel to outer space and see a whole new galaxy! Wait a minute…these round stars sure do look familiar..."
  • Blue: "It appears that new stages have been added once again! The structure seated among them is known as the Comet Observatory, and it's used for travel from galaxy to galaxy. Such a shame it can't be used to escape these pesky doctors!"

Area 1

Image	Stage	Overview
	Stage 281	This stage introduces Keys, which float to the top of the stage until it collides with an object, and will not disappear until it comes into contact with a Door. Viruses are hidden in the third and fourth rows of bricks.
	Stage 282	This stage contains viruses that are blocked by Crates (each requiring 4 matches to clear) except for the bottom, with two keys outside of it. Instead of clearing all the viruses, the objective of this stage is to clear a path for the Keys to reach the Doors.
	Stage 283	This stage features Lock Blocks and Floatie Viruses that obstruct the path between the keys and the doors, in addition to Crates. Shells and Exploders (added since version 1.3.5) are available to help clear the path. Prior to version 1.3.5, the stage layout was different. The following changes were made: Capsule count is raised from 41 to 45. Exploders are added directly above the keys, replacing crates. The virus on the top-left is changed to a Floatie Virus while the virus directly below it, originally a Floatie Virus, is changed to a regular virus. Additional viruses are added directly above the bottom-most row of boxes. The bottom-most row of crates now require two matches to clear instead of three.
	Stage 284	This stage features Virus Coins, where the ones at the top and bottom rows must be cleared before the ones on the left and right columns are unlocked. Both Viruses and Virus Coins must be cleared to clear this stage.
	Stage 285	This stage contains viruses above and below Empty Blocks on the top part of the stage, in addition to Shells and Exploders. On the bottom portion of the stage, Viruses in the shape of a "U" is on the left, along with bricks hiding viruses in the middle and bricks containing coins shaped like a "U" in the bottom-right portion of the stage.
	Stage 286	This stage introduces Colorful Crates, which can only be broken if a like-colored match is made adjacent to them.
	Stage 287	This stage features Floatie Viruses encased in Colorful Crates. The capsule count is raised from 39 to 42 since version 1.3.5. Besides that, this stage is otherwise the same.
	Stage 288	This stage features Lock Blocks with the unlocking capsules and Floatie Viruses situated between rows of locked blocks.
	Stage 289	This stage featues Viruses encased in ice forming a square, along with Crates, Keys and Locks forming a diamond with Brick Blocks inside the formation. Prior to version 1.3.5, the stage layout was different. The following changes were made: Capsule count is increased from 39 to 43. A number of crates changed from requiring 3 clears to 2. Viruses can currently be found in Brick Blocks.
	Stage 290	This stage features Caged Coins locked behind Lock Blocks, which requires clearing the Virus Coins in the middle and the Lock Blocks to be unlocked to fully unlock. In addition, Caged Coins are found in Brick Blocks that are unlocked after the first set of Caged Coins are cleared.
	Stage 291	The objective of this stage is to clear all Crates and Viruses. There are light-blue Lock Blocks that require clearing the middle of the bottom-right formation to unlock. Ice Fans and Bubble viruses are found in the bottom-right formation, in addition to the lock capsule. Shells can be found in the bottom 3 rows of Lock Blocks.
	Stage 292	This stage contains Crates and Brick Blocks locked behind red Lock Blocks, with the lock capsule situated at the topmost row. It also features Floatie Viruses on the left and right rows, along with Exploders confined within the structure.
	Stage 293	This stage features Brick Blocks containing Coins, along with Coins interspersed among Viruses at the third to seventh rows. Prior to version 1.2.0, the stage layout was different. The following changes were made: Coins at the third to fifth rows are changed to Caged Coins. Clearing the existing Coins will unlock the third row of Caged Coins, and clearing that row of Coins will unlock the rest of the Coins. The top row of Brick Blocks do not contain Coins. Additional viruses are added to the third row. Prior to version 1.3.5, the stage layout was different. The following changes were made: Capsule count is increased from 40 to 42. Two Crates are added in the middle row.
	Stage 294	This stage is shaped like an right-angle rainbow, and contains Lock Blocks that contain Colorful Crates in the light-blue and red ones, and Ice Fans in the green ones. Additionally, Viruses in Bubbles are found throughout the stage. The capsule count is raised from 33 to 36 since version 1.3.5. Besides that, this stage is otherwise the same.
	Stage 295	The objective of this stage is to clear all Viruses and unlock all Doors. This stage contains Colorful Crates and Viruses around the crates, including Dust Viruses. Additionally, a Shell and Exploder appear on the middle row.
	Stage 296	The stage layout is shaped like a mirrored percentage symbol (%). On the "dot" portions, viruses are surrounding Ice Fans, plus there's a Lock Capsule located on the top portion. The lock capsule will unlock the Exploders, which are sandwiched between Viruses encased in two layers of Ice.
	Stage 297	The objective of this stage is to clear all Viruses and unlock all Doors. Between the Keys and Doors are Colorful Crates. Viruses are found on the left and right of the Colorful Crates and Doors, with an empty middle column.
	Stage 298	This stage features viruses hugging against Ice Fans, along with Colorful Crates that block the other side of the Viruses and a lone Virus in the top-left corner. Shells are available in this stage. Prior to version 1.3.5, the stage layout was different. The following changes were made: Capsule count is increased from 33 to 37. Exploders are added within the red and green Colorful Crates. Ice Fans are encased in one layer of ice.
	Stage 299	This stage features Lock Blocks, with the red lock capsule being more easily accessible compared to the green one, as it is surrounded by Viruses. The red Lock Blocks will unlock a row of Viruses including Floatie Viruses, along with a row of Crates that must be broken to access the top two rows of Viruses.
	Stage 300	The last stage of the first area, the stage has a unique objective: in addition to unlocking Doors (visible only after the stage scrolls), it only require 25 red and light-blue Viruses to be cleared each instead of all of them, while clearing the green Viruses do not contribute to the objective. This stage will scroll for 7 lines before it stops. When cleared, the rest of the first area in the world map gets cleared of viruses. Players also obtain the Star Bunny assistant upon completing this stage. Prior to version 1.3.5, the stage layout was different. The following changes were made: Capsule count is increased from 33 to 37. Additional Colorful Crates are scattered throughout the beginning portion of the stage.

Area 2

Image	Stage	Overview
	Stage 301	This stage introduces Capsule Plus, which when cleared, will increase the Capsule count by the number displayed. Every time a Capsule is added to the stage, the number for every Capsule Plus is reduced by one, disappearing entirely if the number reaches zero.
	Stage 302	In this stage, Capsule Plus capsules are interspersed among Brick Blocks and Viruses.
	Stage 303	The center items in this stage are all partially encased in ice, including the shells.
	Stage 304	The stage is vertically-oriented, with viruses partially encased in ice and a Skill Charger on the upper area.
	Stage 305	This stage introduces the objective of finding coins in brick blocks rather than the main objective being to eliminate viruses. Upon completion of this stage, players have access to the timed challenge stages, starting with Stage 1A.
	Stage 306	This stage contains many viruses hidden in brick blocks.
	Stage 307	A long line of exploders are in the center of the stage, which then activates the shell on top of the exploder.
	Stage 308	This stage contains viruses arranged in a triangle that are blocked off by fans, colorful crates and coins. The locked coins requires the top-most coins to be cleared before the next top-most coins will be unlocked, two at a time, with the two bottom-most coins being unlocked simultaneously when both remains. Prior to version 1.3.5, the stage layout was different. The following changes were made: Capsule count is raised from 39 to 44. Certain fans are encased in a layer of ice. Players are guaranteed to start with a double rainbow capsule.
	Stage 309	Much of the viruses are hidden in brick blocks, with players having access to skill chargers.
	Stage 310	The second stage that requires players to obtain coins from brick blocks. The stage additionally has two exploders.
	Stage 311	There is an exploder in the central part of the stage, as well as having the central row of viruses partially encased in ice.
	Stage 312	The stage has viruses hidden in brick blocks and partially encased in ice. Players can obtain the Skill Charger at the bottom early.
	Stage 313	The stage has long rows and columns of viruses, some partially encased in ice. The shell can activated early on the left part of the stage.
	Stage 314	The red shell on the left area of the stage can be activated early to destroy the ice on the viruses as well as destroy the row of viruses blocking the viruses on the right portion of the stage.
	Stage 315	The third stage where the objective is to find coins. It features a long column of blue viruses on the left and right parts of the stage.
	Stage 316	This stage has no blocks, with some viruses being partially encased in ice. The stage features an exploder on the center, which removes the ice on the adjacent viruses and eliminates the remaining viruses resulting from opening up the exploder.
	Stage 317	This stage has many viruses hidden in brick blocks. Viruses of the same color are found adjacent to the exploders on the stage.
	Stage 318	This stage features a large amount of exploders and viruses hidden in brick blocks. The exploders on the lower rows remove the ice covering the viruses, while the upper row exploders start a chain reaction, revealing viruses hidden in brick blocks.
	Stage 319	The upper portions of the stage have many viruses of the same color clustered together. The upper center viruses require that players earn the Skill Charger blocking to remove them.
	Stage 320	The final stage of the world represented by a castle introduces viruses coming downward when enough get eliminated. It is vertically-oriented and primarily features red and blue viruses. Once it is cleared, the remaining area of the stage map gets cleared of viruses, and players can access World 2. Upon completion, players earn a free ticket that lets them unlock either a new doctor, a new assistant, or leveling up an existing doctor or assistant.

Challenge stages

Image	Stage	Overview
	Stage 8A	Within an 80 second time limit, players need to eliminate all viruses. The stage is vertically oriented and it introduces pink viruses, which replace red viruses.
	Stage 8B	Within a 90 second time limit, players need to eliminate all viruses. The viruses form a circular shape on the center of the stage, with the inner-most viruses encased in ice.
	Stage 8C	Within a 90 second time limit, players need to eliminate all viruses. The viruses are more dotted across the stage with less regular patterns, with no blocks and some viruses being partially encased in ice. Players earn 1000 coins if they complete this stage.

Special Stage

Image	Stage	Overview
	Special Stage	This stage is split into four parts, with a row of viruses down the middle. Two parts are diagonally oriented and contain Brick Blocks, the other two have small spaces that the player must put half-capsules in. Red viruses are replaced with pink ones. Completing this stage awards the player 1000 coins, and as of Version 1.2.0, Dr. Toad is also awarded.

Stage Layouts in Previous Versions

• 

  Stage 283 prior to version 1.3.5

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  Stage 289 prior to version 1.3.5

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  Stage 293 prior to version 1.2.0

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  Stage 293 prior to version 1.3.5

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  Stage 298 prior to version 1.3.5

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  Stage 300 prior to version 1.3.5