Its a very nice concept, although level 1 is WAAAYYYY to difficult, this deterred me from moving past it. I would recommend easy levels at the beginning of the game. I'm not sure if it was intended, but, when you go into the lasers you do not immediately die, which would usually make sense. Another very useful feature would be your health displaying as a bar or as hearts, it's quite hard keeping track of your health when it is just a number.