The only thing you killed here was the joke.
Anywho, Draykon. Prepare for your ears, eyes and pancreas to bleed with annoyyance as I make random suggestions.
Player gear trails = Particle effects? Can be turned off in the options menu.
More accurately textured Egg Factory = green/grey textures with red/orange colormaps where appropriate, as well as some OpenGL lighting here and there. New lava texture would be nice too.
Faster boost, this one's a no-brainer.
Remove "Rider" from everyone's skin names.
Keep Green Shadow, and bring back the Black.
Fix the minor color-changing bug I failed to explain correctly last time I mentioned it. Most characters don't change colours they way they do in Vanilla SRB2. It's hard to explain anyway, so look into it and see if you notise anything.
Grinding sprites = On-edge balance sprites used on rails.
Transparent FoFs on the roads of Metal City, with the ground visible far below.
Bring back old-style Time Attack. The new one doesn't even work properly. Your times and replays don't record correctly. New interface for it too, to match something more like Sonic Riders'.
Are you working on Battle Stages?