Many gamers of a certain age (cough) spent entirely too much time fighting Abobo and pals in the Double Dragon series. If you're one of them, you'll be glad to hear that DotEmu has released its promised Double Dragon Trilogy for both Android and iOS. The $3 app faithfully recreates all three adventures of Billy and Jimmy Lee, including the soundtrack; if you're willing to introduce modern touches, you can get a mobile-optimized (read: easier) difficulty level as well as remastered music. Both versions support the brawler's signature co-op mode through Bluetooth, and they'll work with many gamepads. DDT isn't going to take you back to the days of pumping quarter after quarter into arcade cabinets, but it might be the next best thing.