Hidden characters: Successfully complete arcade mode to unlock a hidden
character. Each standard character will unlock a new hidden character.
After Venus is unlocked, successfully complete the game in marathon mode
to unlock Aphrodite. Note: Venus is unlocked after arcade mode is
completed with ten different characters.
Invincible mode: Successfully complete arcade mode with all nineteen
characters.
Top Collector mode: Successfully complete arcade mode with ten
characters. In this mode, you have to collect as many bras as possible as
Venus.