Unlockable - Unlock hidden levels | |
| If you've got this game for the Gamecube, you will find white boxes spilling light on the GCube version. Connect to the GCube using a GCN-GBA Adaptor plug. When you break the boxes, you will unlock a level each time. | |
Glitch - Slide Through Walls | |
| First, hang on to a ledge and fall off, but don't move after you fall. If there is a wall next to you, you will slide through it if you press and hold DOWN. | |
