Nope, the next item is in the bridge areas of the Sky Temple. You could've gotten the spazer a long time ago though. It's down in DG.
All right, now I'm satisfied with this hack. I think this is the first hack of SM that gave a genuinely different feel; not an easy goal when you're playing with the same physics system and items! I especially liked the sections near the Wave and Plasma beams, although I do wish you had given the giant room in the left of HC a scrolling background! (spacejumping with no reference points is... tricky). I wanted to give you a proper thumbs-up on this hack, it had a lot of effort put into it and it really shows. Any chance of a future patch that requires Screw Attack and Plasma? I thought they added a lot of depth to the end of the game, which I had previously considered kind of abrupt and anticlimactic.