It's a Shoe-In

'''Kutsu o Haite GO! GO! (With Boots On, GO! GO!') is the sixteenth Japan-only e-Reader level of Super Mario Advance 4: Super Mario Bros. 3''. A compilation of these unreleased levels was fully translated into English and leaked on to the Internet; in this compilation, the level is called Castle a Go-Go. It takes place in a castle-like area, with many spikes in the level, requiring the Goomba's Shoe for navigation. This level contains many Thwomps, Koopa Troopas, and three Advance Coins. At the start of the level, Mario will land on a floating P-Switch instantly, making navigation to the first Goomba's Shoe possible and providing acess to the first Advance Coin. This level indicate that it is possible to defeat Thwomps with the Goomba's Shoe.