I’ve been meaning to post this for a while – it’s the other secret game hidden in Sportsfriends, a version of Get On Top that uses twin-analog controllers for input. One stick controls your legs, the other controls your arms – it’s designed to sit with one other person and play for hours.
You may encounter some issues – particularly, if your monitor has vsync turned off, or is running at a refresh rate higher than 60Hz. Unfortunately, I can’t compile it anymore so those bugs are probably not gonna get fixed!
The old Flash version is still online here, if you have a browser that can run it.