List of Super Mario Bros. Wonder glitches

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This is a list of glitches in the game Super Mario Bros. Wonder. Unless otherwise noted, all names are conjectural.

Graphical

Naked pipe in Piranha Plants on Parade

During the Wonder Effect of the course Piranha Plants on Parade, a Warp Pipe on the right side of the screen can briefly be seen floating in the air, allowing the background to be seen in the space below it. As the pipe lowers during the Wonder Effect, the issue is only visible for a few seconds.

This glitch was patched in version 1.1.0 of the game, which was released on March 18, 2026.

Physics

Background wall bumper-assisted clip

In Shining Falls Special Triple Threat Deluge, by bouncing off the small bumpers during the course's Wonder Effect, the player can clip through blocks.

Wubba out of bounds clip

During a Wonder Effect that turns players into their Wubba form, by attaching to goo, moving against a ceiling, and allowing another player to respawn, the second player will respawn attached to the top of goo out of bounds.

Scripting

Jet Run Propeller Flower

When releasing a Propeller Flower from a ? Block while using the Jet Run badge, the Propeller Flower occasionally becomes stuck to the player and unable to be used.

Sequence break

Skip half of World 1, 2, and 3

Two players are required to perform this glitch.

The player must complete the first three courses of the game to have access to the rest of World 1, then reach the end of the course Break Time! Hurry, Hurry. The player must add a second player and have them collect the Wonder Seed. On the map, the player who has the crown has to move towards the Badge House to the west of the course. The player without the crown must move to the northeast so that they are not visible on the screen. Once this is done, the player has to reselect the characters. The character who did not have the crown will teleport to the one who did have it, but will be able to move out of bounds. Using the character with the crown as a guide to better visualize, the player has to guide the character without the crown to the bottom past the cloud, where the player must reselect and choose only the character who is out of bounds. There will be a point when the character has to jump to be able to bypass the Wonder Piranha. A cutscene will cause the character to be stuck in place, so the player will have to repeat the process, since this time the cutscene will not appear; after this, the character will be able to access the entrance of Petal Isles. Although World 1 is not completed, Florian's cutscene will play out as normal, and the Royal Seed will eliminate one of the Cloud Piranhas, even though the player did not collect it.

To skip World 2, the player must continue playing until they clear the course Blewbird Roost to unlock the island that leads to World 2, where they must add a second character again. One of the players has to stand at the beginning of the path (but from the island where the two players are), and the other character has to be up to the north-west (north-east side for the player), jump and open the menu while in the air. Reselecting the two players again, the character who was at the beginning of the path has to move down, and the one who was next to the Wonder Piranha will follow them, but will be out of bounds. The player must carefully move the character that is out of bounds to the island to the east and enter any course. Both players have to leave the course and clear the Wiggler Race course Swimming!, after which players will have access to the next part of Petal Isles, skipping the completion of World 2.

To skip World 3, the player must collect all eight Wonder Seeds to access said world. When the player has passed Master Poplin's House, they have to add the second player again. The player must move one of the characters to the first golden square and move the second player to the course to the south. Players have to reselect the characters, and the one that was at the bottom will be out of bounds. Going to the north west will allow the character who was out of bounds to access the pipe that leads to World 4, skipping the rest of World 3. The player will be stuck because they never opened the door, but by entering the only course there and losing all lives, the character will be in the same world but from outside the door, leaving free access to the rest of the world. Returning to Petal Isles, the game will never tell the player the name of World 4 (this also happens in World 3), and the player will no longer be able to return to World 4. The player will only be able to return to World 4 (in this state) by selecting a course in that world, as long as the player has passed it. Beating the palace in World 4 will make the game believe that the other three worlds have already been beaten.

When World 6 has been cleared, the player will have access to Castle Bowser even though there are still two Cloud Piranhas surrounding him.

This glitch works because the game only checks that the last three Royal Seeds have been obtained before allowing access to Castle Bowser.

This glitch was patched in version 1.0.1 of the game, which was released on November 20, 2023.