Onimusha Tactics Cheats (GameBoy Advance)

To unlock Onimusha Tactics' only hidden character, you need to complete All 16 Floors of
Phantom Realm.

Find a stage that your character could first fight with an enemy, or any stage that your
will touched the enemy before the enemy fights you. Then, choose the lowest level
character from your team, and train it in the stage. For example, after you just touched
the enemy and gain the little bit experience (about 48 experience points), and just
before all your team members end their turn, escape from the match. Then start over.
Continue doing to earn a lot of experience.