Complete the following amount of objectives to unlock the corresponding

Unlock Minigame - Range Driver 1:
Complete 10 Objectives

Unlock Minigame - Bumper Carts 1:
Complete 15 Objectives

Unlock Attack - Finishing Moves:
Complete 20 Objectives

Unlock Minigame - Race Track 1:
Complete 25 Objectives

Unlock Minigame - Range Driver 2:
Complete 40 Objectives

Unlock Minigame - Bumper Carts 2:
Complete 45 Objectives

Unlock Attack - Ground Pound:
Complete 50 Objectives

Unlock Minigame - Race Track 2:
Complete 60 Objectives