Dragon Quest Heroes: Rocket Slime Cheats

Codes
Unlock new tanks in challenge mode (JP version). Inside the church, input the following codes: (R/L mean the right/left shoulder buttons)

Y, R, R, U, L, L, Y, Down, Down, Down, Y, Select: Unlock a female slime tank
Y, L, L, Y, R, R, Y, Up, Down, Select: Unlock helmet slime tank

Unlockables
Unlock new tanks for multi-card play. If you're in the church, punch down these buttons. (Unlocking these wouldn't hurt since you can't get these in regular battles, plus it'd be more fun :D)

Knightro: Y, L, L, Y, R, R, Y, Up, Down, Select
The Nemesis: Y, R, R, up, L, L, Y, Down, Down, Down, Y, Select