Zoiks, Scoob! This code gives Shaggy all the courage he will need to complete any mission. To get it, start the game, then press and hold L, then press UP-C, LEFT-C, DOWN-C, UP-C, DOWN-C, UP, RIGHT, DOWN, LEFT, UP, LEFT, DOWN, RIGHT, UP, DOWN. When you get done with this long string, Shags will say "Wow" and be overwhelmed with courage.

To skip through levels like a schoolgirl through the buttercups, start a game, then press and hold L. While doing so, press UP-C, DOWN-C, UP-C, DOWN-C, then UP, DOWN, UP, DOWN, RIGHT, LEFT, RIGHT, LEFT.