Spikey (Super Mario Land 2: 6 Golden Coins)

A Spikey is a hedgehog-like enemy found in the game Super Mario Land 2: 6 Golden Coins. It can only be found in Tree Zone Area 1, near the base of the giant tree. A Spikey's attack pattern consists of blinking between two shades, curling itself up into a ball, then dashing forward in an attempt to ram Mario, similar to Sonic the Hedgehog's move of Spin Dashing. Despite having spikes, Spikeys can be defeated by jumping on their heads.

Super Mario Land 2: 6 Golden Coins

 * Virtual Console Manual: "This weird creature will curl up its spiked body and roll at Mario."