All Working Digimon Battle Spirit Cheats - GBA

Agumon
An extra comes with Gabumon. He is the same as the first one, only with a different digivolution and can float.

Black Agumon and Black WarGreymon
Successfully complete the game two times with two different characters.

Impmon
Complete the game with 300 or more D-Spirit, and having defeated Impmon.

Colors

Guilmon's colors are orange and red.
Terriermon's colors are green and gray
Renamon's colors are yellow and silver
Veemon's colors are blue and green
Wormmon's colors are green and blue
Agumon's colors are orange and darkcrem
Sukamon's colors are yellow and cream
Black Agumon's colors are black and blue