A witty, pixel art platformer/brawler in the same vein as the MegaMan series, featuring a scatterbrained chimera named Chelsia (the titular Khimera) who's tasked to beat up a gang of monstrous old-timey pirates after they raid her island. And oh yes, the game's free.

The Good:
+Witty, tongue-in-cheek writing.
+Tight play controls
+Relatively high diffilcuty balanced by unlimited continues.
+Plenty of secrets and extra modes.
+Controller button mapping for several styles of controllers.
+Catchy, 16 bit-era soundtrack. (Which is available to listen to as .ogg files in the game's directory).
+Free. Even the entirely-cosmetic DLC is $0.99.
+Free after story scenario (The Hallow--err, Harvest Festival.)

The Bad:
-Game's over-reliance on Chelsia's dash move might be offputting to some.
-WIndows OS only.
-No Steam Cloud support, so save games have to be manually transferred.

Verdict: Why are you still reading this when you could be punching monster girls?