World 9-5

Coin 1

Run down the slope when there's a gap between the penguins to grab the coin. Worst case scenario, you may take a hit, but as long as you're at least Super Mario, you'll still be able to grab the coin.

Coin 2

This coin seems tricky, but you can actually wall-jump right up to it! But first, don't hit the ?-Switch on the right until you've grabbed it, otherwise you'll have to avoid penguins too! At any rate, stand directly below the ledge containing the coin, then jump straight up and wall-jump off the left wall--as you begin to fall back down after the wall-jump, hold right to land on the small ice block, from which you can then leap to the coin! Note: Don't run before making the wall-jump, otherwise it'll launch you at a weird angle making it impossible to land on the ice block.

Coin 3

To grab the final coin in the small section on the right, you'll have to freeze the Fuzzy on the track just below then hop from him to the coin. You can freeze him easily by riding the track on the left around, spamming ice balls--once frozen, you'll have just enough time to loop around the track once more, jump to him, then to the coin.