U.GG 
Icy Veins 
Arcade Cloud 
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Luminosity Boxhead: Santa Edition Is Free For Now
Boxhead: Santa Edition takes the popular dual stick shooter into holiday-flavored mayhem, with a Santa-skinned main character mowing down elf-esque zombie enemies in wave after wave of bloody mayhem. Sound like your type of game? It's free for now, so grab it and see what you think.
Boxhead Helliday Special is a fast paced action-shooter with colorful graphics, intuitive game play and an impressive legacy. Play as Santa armed with an arsenal of deadly destructive weapons. Survive through waves of Santa hat zombies, running undead elves and fire-breathing snowmen using a staggering array of offensive and defensive weapons. It’s easy at first, but don’t get cocky. The stronger you get, the stronger—and more numerous—your enemies get.
Rob LeFebvre
Dad. Mac head. Ukulele nerd. Gamer. Rob lives in Anchorage, Alaska, and commutes daily to the intarwebs to edit and write about iOS, Mac, books, and video games. He is currently employed as the editor at 148Apps, the best gosh-darn iPhone site this side of Mars, and contributes freelance to various other sites, including Cult of Mac and VentureBeat. Somehow he still finds time to play in a Disco band, raise two amazing kids, and hang on to his day job.