The following are known Action Replay Codes for Tiny Toon Adventures: Buster’s Bad Dream on Nintendo Game Boy Advance (GBA).

These are Action Replay Version 3 (V3) Codes.

The codes should work with the region specified but may work for other regions as well.

(M)
7865f40c
12e52ff3
377ab5fb
ecdbbad6

Inv After 1 Hit
27bc49a8
30b92697
1d5557f2
facc2ba7

Slow-mo on button
dbba3a89
4cb74b94