Major Glitches

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Stone Glitch

This glitch is triggered when the stone ability is activated underwater. Because stone cannot be used when Kirby is in a swimming state, in most cases, the glitch requires going out of bounds. As an exception, this glitch can be activated in the mid-boss room in 6-1 by breaking the block under the door, then mashing B as Kirby splashes in and out of the water. The memory is destroyed and all sorts of visually strange things can happen. In Any%, this glitch is used in conjunction with a frame-perfect pause to warp to the staff credits. On the Nintendo Classic Mini and Switch, doing this glitch will cause an error and force the game to close.

Permanent Copy Ability Glitch (UFO Glitch)

This glitch is triggered by taking damage or pausing and exiting the stage at the same time the copy ability is discarded. When this is used with UFO, it is possible to carry over UFO to other stages, which is impossible in normal play. In addition, Kirby will not lose his copy ability if he takes damage. This can be done with Sword, Hammer, or Parasol, In the case of Parasol, descending slowly is not possible. When done with other abilities, it becomes a mysterious ability that produces a splash, with no practical use.

Damage Carryover

Discard Kirby's copy ability with the Select button as soon as damage is taken. This trick is frame-perfect. If select is pressed early, the sound of the copy ability releasing will occur, and if it is pressed late, the sound of damage being taken will occur, which can be used as a reference for timing.

Pause Carryover

Press Start and Select at exactly the same frame and exit the stage from the pause screen. If successful, Kirby's appearance does not change, even though the ability star that was discarded just before the pause screen will appear a little above Kirby's head.

Success Pattern

Failure Pattern: early Start

Failure Pattern: early Select

Warpstar Carryover

Discard Kirby's copy ability as soon as he gets on a Warpstar. This is also frame-perfect. This trick is not very practical because it can only be done where there is a Warpstar and the ability disappears if it is discarded too early.

Collision Pause Glitch

If the game is paused at the moment a moving enemy enters the screen, the enemy will move during the pause screen. This is a frame-perfect trick. If Kirby takes damage in this state, he will also be able to move while in the pause screen. While paused, the terrain collision is determined differently than normal and refers to a specific location within that map. Therefore, while in this pseudo-paused state, a wall that is visually present may be passed through, and areas that appear empty may block Kirby. Spikes and doors function the same way they normally would (Kirby can still take damage from spikes and doors can still be entered during the pause).

Collision changes are done in scroll units (1 scroll = 16 x 12 blocks).

In the case of a room with only one vertical screen, the collision on screen 0 (the leftmost screen) applies to all screens.

In the case of a map with two or more vertical screens, screen 0 is applied to all screens in the bottom row, and the screen one below is applied to all other rows.

However, it appears that collision is normal when moving between screen borders.