- There is also an interesting glitch where in one of the Forest of Illusion levels. If you have the key in Yoshi's mouth, and you stand right above the keyhole, when the time up comes, you will go up, then fall down onto the keyhole.
- Another glitch, while it is not abusable, is a set of two actions that may take place while the "keyhole expansion" is taking place. The first is while riding a Yoshi with a key in its mouth, you can spit the key out, leaving it frozen in place in the foreground of Yoshi's head until the keyhole recloses. The second glitch, while pointless and serves no purpose whatsoever, is that you can duck as many times as you want while on Yoshi, before the keyhole recloses. Both of these glitches are cool, and otherwise useless while playing.
- It is possible to jump infinitely with a key, cape, and wall, while fluttering, hold the key and hug the wall while falling, then throw the key to the wall and if done correctly, Mario will be able to jump up and hold the key at the same time.
- The keyhole expansion and shrinking uses windowing HDMA to achieve the effect.
|x04D12||$00:CB12||Opening window data. x4DA3 - Change 4B to 49 to fix a misplaced tile on the keyhole "iris in" effect.|
|x0E3D1||$01:E1D1||Sprite that can unlock keyholes in its stunned status (Default is 80: Key)|
|x0E411||$01:E211||Keyhole shrinking timer.|
|x0E451||$01:E251||Top tile of keyhole|
|x0E456||$01:E256||Bottom tile of keyhole|
|x0E45B||$01:E25B||Keyhole palette/GFX page|
|$7E:04A0||HDMA table for windowing effects (keyhole, level end, etc.)|
|$7E:1433|| Scaling factor of the growing circle before the Titlescreen starts.
Starts at 0, circle gets bigger when the value increases. Loads titlescreen when value becomes #$F0 or higher. Also used for the keyhole.
|$7E:1434||Set to #$30 to end level via keyhole|
|$7E:1435||Keyhole growing/shrinking flag.|
|$7E:1436||Keyhole X position|
|$7E:1437||Keyhole Y position|