New Super Mario Bros. Wii/World 1-Castle

Normal Strategy
Carefully navigate the cogs, and then carefully dodge the Thwomps. When you reach the door to Larry, jump between the two coins on the left for a power-up.

Boss Battle-Larry Koopa Larry still is really easy. Jump on him from a higher platforms, and let his shell bounce between two of the platforms.

Star Coins

 * Star Coin #1: Jump onto the cog with four spokes and jump to the star coin.
 * Star Coin #2: After the first small thwomps try to crush you, a giant thwomp will smash through some bricks allowing you access to the second star coin.
 * Star Coin #3: At the final cog, jump at the right time to go down the green pipe. Once down, hit the P switch and quickly run across the bricks to the star coin.

Enemies

 * Dry Bones
 * Boss: Larry Koopa

Items

 * Super Mushroom
 * Ice Flower
 * Fire Flower
 * Propeller Mushroom
 * 1-up Mushroom
 * 8 Red Coins