I don't remember when Alto's Odyssey became free to play on Android, but it's honestly such an amazing game. Its prequel is pretty nice too, but I like this one better.
I used to be addicted to Super Starfish too. I'm even pretty close to completing it, but just never had my chance to do so because... reasons. I would love to see this game on the Nintendo DS.
I played the original Sonic trilogy. It was fine, I guess.
The Dadish series was super annoying and very infuriating despite looking like something a child could complete in one sitting.
Bean Dreams was absolutely phenomenal, though. I loved every second of it. Why on earth did they have to take it down from app stores???
I played Okay. It was okay.
Bart Bonte's "color" series of games are also pretty fun to play through. You actually can finish all of them in one sitting if you're brainy enough to do so. I did. "Black" was my favorite, since you get a glimpse of the Belgian flag at the end (Bart is Belgian after all).
I even played Goat Simulator on mobile (not the sequel, the original). For some reason I enjoyed that one the most despite how very obviously limited the mobile version is.
Conclusion: I like very niche categories of mobile games.