Yep, this is just a test of integration (and maybe a little kind of "commercial" for our complete work). You have to understand that 20 levels with progressive difficulty and new gameplay elements will be on the final version, and that you'll all have to be here to test our game :p So wait carefully, and thanks for your first reactions ! (thanks to you Bigadam).
Bumper is a student game from a french game design school, SUPINFOGAME.