Lode Runner 3-D Cheats
While in a level press Start to pause the game and hold the Z Button. While holding Z, press R, B, A, B, A, C-Up, C-Down, C-Left, C-Right, C-Up, C-Down, C-Left, C-Right. A tone will sound and the option "Unlock Worlds:" will appear. Highlight the option and turn it to "Yes" to access all of the worlds.