Wooden case glitch

The wooden case glitch is an error affecting all known versions of Speedy Blupi and Speedy Blupi 2. It is primarily caused by pulling a wooden case into a skateboard. In Speedy Blupi, it can cause the player to become stuck in place, and in Speedy Blupi 2, it can cause the player to be ejected through the ground.

Cause
Pulling a wooden case into a skateboard can cause the game to mistakenly remove the crate instead of the skateboard entity. Any entity that loads into this slot will have solidity like a crate, which can get Blupi stuck in place (in Speedy Blupi) or eject him through the floor (in Speedy Blupi 2). In custom levels, this slot is often filled by the skateboard when dismounted (due to the lack of other entities), but any entity can fill the slot. This bug's effects can be difficult to anticipate due to the obscure nature of object slots.