I loved Snake Pass! I bought it for my nephew but ended up playing it more than he did.
if you know similar unique concepts, I would love to learn about them!
There's an entire subgenre of indie games based around controlling weird things like this. Sadly most of them aren't very fun (it turns out inventing entirely new control schemes is hard, who would have guessed?), but there have been a few I've enjoyed.
The most famous of the past few years is Getting Over It with Bennett Foddy, where you play a man in a pot trying to climb a mountain. Its whole schtick is being as frustrating and unfair as possible, so it's definitely not for everyone.
My personal favorite would be Yoku's Island Express, which is a cute Metroidvania-lite based around pinball of all things. It's way better than it sounds, though it's kind of easy if you have any prior experience with pinball games. This one has a demo if you want to try it.
There's also I Am Bread, which is more typical of these types of games in that it's just weird for the sake of being weird. In it you're a sentient piece of bread who has to flop around a messy house, trying to complete the steps to turn yourself into delicious toast without getting inedibly dirty in the process.
And of course there's the granddaddy of them all, the Katamari Damacy series. In it you run around rolling up the entire world into your gradually growing ball of stuff. I haven't played any since the original on consoles so can't speak as to whether the modern ones are any good.