Finally got this to work yesterday! And it's great!
I don't know how far in the game I am (Marble Zone) but it's been fun! The sprites are clean and fit each level like a glove. The music choice is superb (Only because i'm a sonic/sega suck up) and they really fit too. Most of the rooms provided new original traps but some were a bit too spike infested for my liking. I've got most of the secret items i've found so far apart fomr one which I assume is blocked off for a reason.
I wasn't too keen on the first boss I must say. It didn't relly feel a boss , It just felt like a target amongst a room full of spikes. The second was was a tad boring but it was fun ^^
I like the addition of a sound test and I liked the secret item museum (Even if you have to press R to leave). I also like your edited Kid sprites , the sunglasses and sub-machine gun really fit him, sor tof as if he really is the guy now and he's badass.
I'm not to keen on the glow above the lava in the marble zone room , it doens't seem very realistic and it's very square (If you PM me I can show you a better way to do it). I also don't really like the death animation , the pieces go flying to quickly for my liking.
Overall this definately ranks 4# in my fave fangame list and I simply can't wait for the new version!