Dango

Dango (ダンゴ) is a badnik in Sonic the Hedgehog CD's Stardust Speedway. It isn't listed in any instruction manual, however it is referred to as "dango" in the game's source code. This is short for "dangomushi" (ダンゴムシ), the Japanese word for pill bug. It is a badnik that also appears, in brown, in Metallic Madness Zone. Approach them and they roll into a ball and charge at you; in ball form, you can repel them. But if you're fast enough, you can destroy them while they're not in ball form by rolling.