We've really flipped our lids this week. One game to make you go insane, one to make you do math, and one you might have played instead of doing math. If you play them in the right order, maybe you'll go Super Saiyan?

La Torre de Nozar (Windows, free) - More games need to use basic math as their central mechanic. La Torre de Nozar is a 2.5D beat-em-up that pits you against a bunch of ghosts. Instead of just punching your way out of things, though, you use math. Tapping the A, S and D keys allows you to add, subtract and divide, launching a short range attack that can hit ghosts and affect the sum written on their bellies. The goal is to make that number reach zero, all while gathering the diamonds that spew once a ghost is defeated. Give it a try, you'll be hooked immediately.

Symbol (Win/Mac/Linux, free) - Your dose of insanity this week comes via Cicada Marionette, author of the equally bizarre Crypt Worlds. Symbol is the sort of game you don't want to talk about because you'll spoil something awesome. It takes place on a, um, world. It's pretty bleak and gray here, but there are a few buildings around, along with vast expanses of near-nothingness. Then there are a couple of items you can pick up, but are you supposed to? What's that vaguely human shape on the horizon? Why is that orb getting bigger? If you're up for feeling like you drank one too many tablespoons of cough syrup, Symbol is your thing.

Block Dude X (Win/Mac, free) - On the lighter side of things, Block Dude X exists purely to tickle your nostalgia. Back in 2001, a sidescrolling puzzle game was released for TI-83 and TI-84 graphing calculators called Block Dude. Ten years later, an unofficial remake with new levels, new features, but the same dude with the same blocks. The original levels are included in this release, along with an optional art style that will remind you of those long days spent in math class. Go on, indulge yourself.