I haven't tested all of the cheats, and I don't know which ones break the game, but here's everything I've seen so far on this forum.
[4x Yen]
04000000 000CB34C E0821101
04000000 00154C60 E0820100
[8x Yen]
04000000 000CB34C E0821181
04000000 00154C60 E0820180
[16x Yen]
04000000 000CB34C...