I have an idea
Since most games are either played until a preset timer is up, the only minigames that come to mind are Golf and Pool. I think Golf would be fun and easy to run since it's all practice and no RNG. I'd love to see some more activity here and I think the addition of minigames would contribute to that.
Recent runs
Level: Front 9
Level: Barnyard: Sharp Squirter
Level: Ben's Hill: Sharp Squirter
Level: Barnyard: Sharp Squirter