The following are known Action Replay Codes for Tweety & The Magic Gems 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)
31cb6aeb
6f87ece5
73be69c1
429e7df7

ARB for 10 moves
692fb40a
d9da3abd
d95b49b6
085cec44

Max Char. Points
777d8c8f
ea411269
0b4a9a3b
394b19cd

Have Red Gem
b4e660c7
4225f4bb

Have Blue Gem
248ef2d6
5cca7e5c

Have Green Gem
47ae9a5b
7b31a1e1

Have Yellow Gem
90402c06
24a81432

Have Purple Gem
2ea86dc9
5505c9e4

AR Button for Slow
dbba3a89
4cb74b94