I never even bothered keeping track of prototype utilities since I don't use it for that and don't care.
Super Cabbage Patch Kids exists, I have it. It's supposedly 128k, doesn't look it though. I haven't played it that much but I've spotted some differences in the obstacles you jump over and the backgrounds.
There's also Super Dam Busters, Super Front Line (demo), Troll's Tale, Family Feud, Temple of Apshai, I think there's some Zork text adventures. I recall hearing about some Super version of a Smurf game. The version of Tunnels and Trolls out there now is just an animated title screen.