What are the powerups in New Super Mario Brothers Wii?

Answer 1

Super Mushroom: Increases Mario's size, allowing him to take one more hit from enemies before dying.

Fire Flower - able to throw fire balls, which can defeat enemies

Ice Flower - Lets Mario throw ice balls which can freeze enemies. The frozen enemies can then be picked up and thrown or Ground Pounded

Propeller Mushroom - Allows Mario to quickly rise into the air, and glide down. This can be used to get to places out of reach for a normal jump.

Super Star - Grants Mario a brief period of invincibility. Defeating enough enemies while invincible can give you extra lives.

Penguin Suit- Grants Mario the ability to throw ice balls and slide on ice

Mini Mushroom - Makes Mario tiny, allowing him to fit into pipes his regular size couldn't fit into. However Mario can be killed as if he were regular Mario and must Ground Pound to defeat enemies.