This game was pretty neat. The tutorial said I had to rock a certain number of the crowd, of each color, during each section of the song. But, I couldn't really tell if I was meeting that target or not. I understood everything else.
Also, I only played Level 1, and it was a tad difficult. There either need to be fewer aliens spawned, or they need a little less health, so they change faster. I think this game has a ton of potential though.