Spike Block

Spike Block is a variant of the regular Containers that appeared in Sonic Generations. It simply an indestructible box that can be only destroyed by Pink Wisp.

Description
Spike Block is a pink square container fueled by raw pink energy with Spike Pink-like symbol on it's center. Spike Block is like the indestructible container, cannot be destroyed by Sonic and the only way to destroy them is to Spin Dash to them in the Pink Wisp Form that is the only thing that can destroy them. They are usually seen with a barrage of white blocks under them that cannot be destroyed even by the Pink Wisp. They only appeared in Classic Sonic's version of Planet Wisp.