Ever wanted to see Sonic covered in paint? Yeah, me neither—until I stumbled on this weird little Genesis romhack. It's basically classic Sonic, but every time you hit a checkpoint or grab rings, splashes of color explode everywhere like someone tipped over a paint bucket. The physics feel a little janky (honestly, what romhack doesn’t?), but there’s something weirdly satisfying about leaving a rainbow trail through Green Hill Zone.

No idea who made this or why, but it’s the kind of bizarre, low-stakes mod that makes digging through old Sega hacks worth it. Just don’t expect polished level design—half the fun is watching the screen slowly turn into a toddler’s fingerpainting.