I like the concept. The numbers scaling isn't so bad (you're not supposed to live forever) and higher levels are a ton of fun. The things I didn't like: a) level cap, b) super range on later enemies, c) ship regen working on a fixed number rather than % of base health. Fix those things and I'll give you that 5th star,Like some others mentioned, i miss the feeling of acomplishment. Maybe creating levels, which are actually winable would remedy that. other than that, sweet game. 4/5