Strawhead Samurai

http://de.bigpoint.com/mini-games/388/Strawhead-Samurai/

Strawhead samurai is a fighting game where you, as a lone samurai, have to fight an invading army. The main mechanic is slicing by painting lines with the mouse. It's a pretty cool idea and works surprisingly well. The game's a short campaign with a lot of action and some strategy at the end. It's a neat little package that should occupy you for 10 minutes or so. Give it a try.