Snackeral

A Snackeral is an enemy from Wario: Master of Disguise. Snackerals only appear at Sweatmore Peak during Wario's adventure through there. Snackerals appear alongside Battle Salmon, an enemy that first appeared in the Smithsnorian Museum. Snackerals are smaller than Battle Salmon and are pink in color. If Wario comes in contact with one of these fish, it will take his Sweatmore Hotpants or Superhotpants and run off. If Wario has both kinds of Hotpants when he is attacked, then the Snackeral will only take the standard Hotpants. If Wario is in lava and he doesn't have Hotpants, he takes damage until he gets out of the lava or until he gets a Game Over. Alternatively, he can transform into Dragon Wario. Should Wario lose his Sweatmore Hotpants, a nearby red chest always turns purple and contains a replacement set of Hotpants, even if he has the Superhotpants. If he loses the Superhotpants, then he must return to where they were originally found to get new Superhotpants.

In-game description
''This fish has been turned into the ultimate weapon by unethical scientist-types. In its spare time, it enjoys war films and sushi.''