Terranigma - Came out at the end of the SNES era, and was never released in the US. Gameplay wise it's kind of similar to 2D Zelda but with RPG level mechanics, spells, and jump/attacks. Where it really shines is the story though. In that area I think it holds its own against the giants of JRPGs from that era like FFVI and Chrono Trigger.

Favorite game is Gwent, though I usually play it on desktop. The game I play most often on Android is either Cytus 2 or Dead Cells.