Chris Buffa (Modojo): Gun Zombie: Hell Gate bears a welcomed resemblance to old arcade games from the early 90s, complete with pixelated sprites and a mysterious announcer who never shuts up ("Headshot! Headshot! Headshot! Alert!"). The only thing missing is a light gun. In this case, you mow down waves of flesh eating monsters with quick taps of a smartphone or tablet's touchscreen, and while the inclusion of ads and constant urging to make in-app purchases are ever present, this free-to-play first-person shooter is a fun way to pass the time while training for the inevitable zombie apocalypse.