Captain America: Sentinel of Liberty is an action-adventure game that puts you in the Cap's fittingly patriotic shoes. With trusty shield in hand, you battle your way through 24 stages, fight off Hydra henchmen, and eventually engage in supercharged fisticuffs with Mr. Anti-freedom himself, Red Skull. Plus, there are plenty of unlockable costumes and comic covers to keep you coming back for more. With its jaw-dropping graphics and surprisingly simple controls that actually enhance gameplay, this is one of the best-looking, most fun platform games we've seen for Android. It's definitely worth the nominal cost. But be warned--the download weighs in at a whopping 120MB, so be sure you have enough room to store it on your SD card. Also, the game has not been tested and optimized for all Android devices as of yet, meaning some could experience glitches. Otherwise, we highly recommend the download.