Sine Mora (PS3/Vita/360/PC/iOS)
The theme for this game is time. You have a limited amount of time to get to the end of the stage. Once it runs out, the game's over. "But its an auto-scroller! How am I supposed to race the clock?" you ask. It's simple! Beating enemies increases your time limit and there are special abilities that can manipulate time in your favor. Your ship wont go kaput until the countdown ends so you dont have to worry about death-on-impact but every hit you take will make the countdown go faster.