From the Super Mario Wiki, the Mario encyclopedia
The Mini-Game Shop (originally called the Game Corner during development) is a place in the Game Boy Advance game Wario Land 4. It appears to be in Outer Space, as the Game Bots of the store are standing on a moon-like landscape.
Wario can play one of three minigames. If Wario gets a certain amount of points in each of the mini-games, he can earn medals, which he can then spend at the Item Shop for items to assist him to defeat the boss of that passage. Each mini-game costs 5000 points to play (discounted to 2000 until Wario completes Entry Passage). Points are earned during normal gameplay.
There are three mini-games:
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