Shrek: Extra Large Cheats

When you defeat Merlin and unlock the codes in the pause menu, you can go inside the Nintendo Gamecube through these places:
Prince's Castle: Go inside the window and try to get back, but miss.
Creepy Crpyt: Go on the church, then press R and L a lot to the north.
Mother Goose Land: Go to the farm and press R and L to any direction.

When you have to put the sheep back into their place at mother goose land, punch the wolf until he has stars around him and pick him up. Drag him to where the guards are, they will start beating him up. Meanwhile go back to the sheep.