Unlockable Characters
By accomplishing a variety of tasks, you can unlock new characters to use in the 
game. Zako A, B, and C can only be used in Vs., Training, and Boost modes; 
Leopaldon may only be used in Vs. and Training modes.

Effect - Code
Leopaldon - Defeat Leopaldon at level 200 in Arcade mode.
Zako A - Clear Boost Mode once.
Zako B - Clear Boost Mode once.
Zako C - Clear Boost Mode once.

EX Mode Characters - Accumulate 100 points in Arcade mode; now EX mode 
characters will challenge you randomly (their names will be in red). Defeat them to 
unlock them.

Antarctica Stage
Defeat Leopaldan in arcade mode, at level 100.