Hey,
About the switching to full screen thing, Sonic's first level is the only level that does it (you can hit Alt + Enter to switch out of full screen mode. You can also hit the same button combination to enter full screen mode if you want) Secondly, I know that the beginning levels aren't all that wonderful. They were the very first I ever made. I figured since it was my first game, I wouldn't spend an eternity fixing up the game and that I would apply what I learned to a new game. What I've done with my sequel is that I've constructed the game engine 6 months in advance. This engine lets Sonic home attack, zip across accelerators, launch off ramps, slow roll, light speed dash, and turn into a dark form of himself when he is overcome with rage (there is a Rage counter in this game). Soon, I'll have a demo version ready, but there are still a few bugs a want to iron out. I probably would've posted a demo of the Rise of the Zorcanite, but I didn't know these sites existed when I was creating it.