This game has a not very original concept, but is a great version of the concept. Though a simple "Lasers Dodged" counter and/or "Time Survived" counter could make this an easy 5/5.... not saying it isn't. It just could be tweaked a little.
@littlegrim, first of all, they aren't lives cuz you don't have to restart every time you get hit. second, you only get 2 HP (hitpoints or healthpoints whatever suits you) at the start, buy better shields to get more HP.