????

''This article is about the fish. For the shapeshifter, see here.''

????? can be a Sharkbone or a Blurp with a shark fin attached to its back. They attacked the Mario Bros. while the heroes were in the Gwarhar Lagoon during the events of Mario & Luigi: Superstar Saga. These enemies always appear in groups, including both the Sharkbones and the Blurps, so it is impossible to tell which kind will attack until it's too late.

In Mario & Luigi: Partners in Time, Shrooba Divers sometimes threw the shark-finned Blurps as an attack. Unlike the other thing Shrooba Divers throw (spherical cacti), the Blurp would bounce over the Mario Bros., only damaging them if they jumped.

Attacks
The ????? has two attacks, depending on which type it is:
 * Sharkbones burrow under and attack Mario or Luigi for large damage


 * Blurp-like fish will jump right over Mario or Luigi, but if the Mario Bros. jump, they'll get hurt.

This combination can be very annoying, since the ?????s shuffle places each time one of them attacks, making it almost impossible to tell which kind the attacking one is. Therefore, the Mario Bros. could get hurt by a Blurp one, expecting it to be a Sharkbone type, and vice versa.

The only way to figure out which will attack first is to look closely at it on the map. Whichever creature can be seen on the map before going into battle will be the first assailant.