This was a lot of fun, Challenging and intense! Very nice that the first 3 or 4 levels gives you a good idea about the feeling of the mechanics, and then level 5, very intense with the mix of spikes and those red bricks falling down , the vibration effect was a plus to this obstacles, and the music loop is very nice, give the game a TRON kind of ambiance/mood. Simple, but fun. Good job.