Cow Suit
In Timber Dale, there is a hut hidden behind trees. The trees are metallic, and if you uppercut them, they will clang. if you go behind them and into the hut, there will be a cow. Uppercut it and you will have the Cow Suit. When you uppercut the five metal trees, you will also have a choice of either the Cow Suit, Fly Suit, or Rock Suit.