Dark Nebula 1 and 2 eh? Well that explains why this one is so polished! In fact, I'd say it is quite possibly the best platformer on iOS. You guys have put soooo much love into it, so much polish, that it just shines like a diamond. The controls are perfect and the level design is incredible (and now that you mention it, I can see a few parallels with the Dark Nebula games). Congratulations devs, this is a new iOS masterpiece. Easily worth the entry cost, and then some!