Really fun! Nice challenge, too. The repeating soundtrack didn't really bug me. The enemies, however, were what I might call " less than adequate" for the scenario. What I might have done is added a flying one, an indestructible one, one that fires projectiles and a rather large one that can only be defeated with a charged shot like in Alien Hominid. Also, [hint] you have to click the door thing reached by riding the platform and then click the coin. (I thought you had to press down while on it like the portal, so you could go through, so that wasted my time.)