Stomping Shoes

The Stomping Shoes are an upgrade for Sonic the Hedgehog which are a pair of heavy shoes made of steel. With the Stomping Shoes, Sonic can perform the Stomp, which allows him to slam directly downwards in the middle of a jump.

Sonic Unleashed
In the 360/PS3 versions in Sonic Unleashed the Stomping Shoes are found in Holoska's Entrance Stage, the hub of Holoska's Action Stages (In the Wii/PS2 versions, Sonic already has all upgrades at the start of the game). Upon entering the Entrance Gate to the Entrance Stage the Stomping Shoes can be found on the other side of the lake, which must be crossed with a Sonic Boost in order to reach them.

Sonic Generations
In Sonic Generations, Modern Sonic already knows how to use the stomp move. However, in the 3DS version of the game, Tails gives him the Stomping Shoes after completing the Dreamcast Era.