rComplex is a Canabalt kinda game. You control a running character that need to dodge obstacles by either sliding under them or jumping over them. There is a twist though, you are also chased by some kind of evil looking tentacle/squid monster. As it gets closer you can use your trusty shotgun to fend off the tentacles and give you some distance. The graphics is pretty nice, but personally I prefer the graphics and gameplay of Canabalt.
The developers wrote the game in Python (using pygame) over the course of a week and they are now looking at getting funding to create a proper game out of it. If you want to support them you can back the project at Kickstarter.