Gunple Gunman's Proof
Action-adventure game exclusive to Super Famicom, inspired by A Link to the Past
If you like 16-bit games and the action-adventure genre, you should probably give Gunple Gunman's Proof a try. It was exclusive to Japan, but thanks to the community, it has an English patch. We're a cowboy, so instead of using a sword or a bow, we have a pistol, a shotgun or a machine gun, to name a few.
There is an score system, after we beat each of the 7 dungeons we get a rank at the end of it, depending on how long it took us, how many treasures we found or how much life we have left. There are no puzzles in these dungeons, they're pretty straight forward, just kill enemies, find treasures and get to the boss. It's not very long, the game can be completed in 4-5 hours and it's not really difficult. Definitely a solid choice if you have a few hours to spare and want to discover something new.