Jazz Jackrabbit (GBA)

From the back of the box:

Jazz Jackrabbit is back... and he's got game!

Now our hero is jazzed up with trick new weapons and tactics, super-cool environments, and a slew of slimy opponents waiting to turn you into rabbit stew. Watch out for surprises as fantastic characters like Zoe Cottontail, Professor Lapin, Spaz and more, unite their powers to help Jazz kick some intergalactic butt.

Strike fear across the galaxy with an arsenal of high-tech space weapons.
Collect, store, and purchase items that will increase your powers.
Blast your way through alien attacks against up to 4 of your friends.
Save your battles to play when you want.