The action in Roswell Fighter is above average, although nothing groundbreaking. Using either touch or tilt controls, you'll pilot your plane across 11 different levels, doing your best to blast down an onslaught of aliens who are invading Earth. Your main cannon can be upgraded multiple times, and a few special weapons can be collected throughout the game to further enhance your offense. One such weapon uses collected orange stars dropped by defeated enemies to fill a gauge that unleashes a devastating laser. Another brings two wingmen to your aid for a short time, increasing your firepower to nearly the whole width of the screen. And of course, there's a screen clearing bomb you can collect and use. It's pretty standard stuff, but enjoyable nonetheless.