Minute Hardcore is an arcade shooter with shades of the classic bullet-hell Ikaruga. The sparseness of instructions is the game's biggest flaw, but generally, you direct your ship with the mouse, automatically shooting at the spacey invaders. Your bullets come in red, green and blue varieties, and you switch between them by clicking. However, since your bullets do not affect enemies of the same color, it soon becomes a game of constant chromatic changes as you try to keep one step ahead of the clock. If you can spare 60 seconds, it'll be well worth your time.

Pong and Space Invaders are two of the most beloved old-school arcade games of all time. Ikaruga and Portal both often make the short-list of modern classics. So what do you get when you combine Pong's bouncing, Space Invader's baddies, Ikaruga's polarity shifts, and a decent dose of Portal's plotting? ReflexION by FreeSparkGames. And while it might not be included in the gaming hall of fame like its inspirations, it's a more than worthy way to pass an afternoon.

Borrowing a page from the book of Ikaruga, the absurdly talented developers of Stimunation Games have just released this stunning Flash shooter that will make your jaw drop and your eyes water from ogling the screen for hours.