Unlock Made In Wario Minigame:
Get the high score on all mini-games on Zukan mode.
Unlock Mini-Game Towers:
Easy Tower: Complete Warioman.
Hard Tower: Earn 25 points on the Easy Tower.
Thrilling Tower: Earn 25 points on the Hard Tower.
Unlock New Gatcha Koron Items:
Alien Items: Complete Wario's last level.
Pyoro R Item: Complete every mini-game once.
Random Item:Complete any character's level.
Easter Egg: Title Screen:
Rotate your GBA left and right when on the title screen to mess up the wording.
Wait on the title screen for a while and little noses will run onto the screen.