Spike Bass

The Spike Bass is an enemy in New Super Mario Bros. It is a giant brown fish with a pale underbelly. They also have beaming yellow eyes, sharp teeth and spikes all over their bodies.

The Spike Bass appears in World 2-A and World 3-C, a Spike Bass jumps from the water and tries to attack Mario in a pattern extremely similar to a Porcupuffer. This enemy can be defeated with a Fireball, a Koopa Shell, a Starman or a Mega Mushroom. However, once defeated, another Spike Bass will return after a few seconds to continue the pursuit.

Reference
Stachel-Barsch