Spunky island girl Lilo and rambunctious alien Stitch return to the Game Boy Advance for a new side-scrolling adventure. The nefarious Hamsterviel sets out to steal some of Jumba's many experiments. You must help our heroes collect as many experiment balls as possible to save Stitch's experiment cousins! Equipped with an evil-genius blaster gun, Stitch shoots bad guys and collects all the experiment balls in a level. The developers must have had Lucky Charms the day they decided to symbolize experiment balls with coins, stars, yellow moons and green clovers. Completing a level frees one of Jumba's experiments. That experiment then joins you on the next level. For example, Experiment 22, Spark, can help players out with his powerful electricity balls, while Experiment 513, Richter, can shake things up by triggering a rockin', rollin' earthquake. Power-ups include weapons and speed-boosting coffee.