At first, my main worry was to not be able to finish it in time, so I started thinking that I woul only do a technical demo for a beat detection algorithm.

Turns out not only did I had more time left than I thought, but I had enough time left to make a game around it !

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The game use an beat detection algorithm I built using mostly this link : 

http://archive.gamedev.net/archive/reference/programming/features/beatdetection/

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Unfortunately, Unity was a bit different, and I had to 'freestyle' my way around it. As such, the algorithm is very basic, consumes a lot of resources, but it's the best I could come up whitin a few days.