Complete the indicated task to unlock the corresponding item.

Acrobat: Complete Episode 4 under the Impossible difficulty.
Bus Horn: Complete Episode 3 under the Hard difficulty.
Car Radio: Complete Episode 4 under the Very Hard difficulty.
Jumping Device: Complete Episode 6 under the Hard difficulty.
MG Magazine: Complete Episode 5 under the Very Hard difficulty.
Military Shells: Complete Episode 2 under the Hard difficulty.
Musical Horn: Complete Episode 5 under the Impossible difficulty.
Nitro System: Complete Episode 1 under the Hard difficulty.
Panda Head: Complete Episode 1 under the Very Hard difficulty.
Police Light S: Complete Episode 2.
Police Light W: Complete Episode 6.
Propeller: Complete Episode 1 under the Legendary difficulty.
Self-Destruct Button: Complete Episode 6 under the Impossible difficulty.
Shark Set: Complete Episode 2 under the Legendary difficulty.
Special Coating: Complete Episode 2 under the Very Hard difficulty.