Spiked Slug
From the Super Mario Wiki
Spiked Slugs are spiked, slug-like creatures found in outer space. They are quite invulnerable, so Mario should stay away from them. They are exclusive to the Space Zone of Super Mario Land 2: Six Golden Coins.
Spiked Slugs are spiked, slug-like creatures found in outer space. They are quite invulnerable, so Mario should stay away from them. They are exclusive to the Space Zone of Super Mario Land 2: Six Golden Coins.