Got the good ending of Sonic CD for the first time ever in my life. Yeah I know I suck, but I did it. Of course I did that by destroying the robot generators and Metal Sonic holograms, cuz screw the special stages.
I've only played CD once before, at the time I think my computer had a hard time handling it, and I wasn't really that good at Sonic. The level just made my head spin lol. So you've already accomplished more than me dude.