Thinking about the N+ pack I downloaded with over 100 something levels, and a post about making a sonic game that lets us build our own levels, I thought about this E02 engine. It's an engine capable of handling classic sonic design but you can make your own levels to, much like Sonic Roboblast 2(A lot of those levels are cheap though). However, making a full fan game may not work, because many of them don't get finished, even Sonic 2 HD suffured because of one guy jerking people around). I think I good idea would be to go N+ style, and have many people create single levels and post them up, much like Rom hacks, but can be updated. Your thoughts?