-Monster In My Pocket - Nothing here that is innovative, it's your average action-platformer. What sets it apart, is the amount of shine Konami gives it. Fantastic looking graphics for NES, great music, and spot-on controls make this a joy to play, especially if you have a buddy and play co-op two-player.
I gotta point out, I was nuts about those Monster in my Pocket figures when I was a kid. They came in mystery boxes so you never quite knew which ones you were gonna get. I'd open one and scream "Whoa! A RED kraken!!" It was like Pokemon, before Pokemon. They're so locked into the era of the early '90s, just looking at them warps me back in time to the days of summer sleepovers, Nerf wars, Super Soaker battles, and all-night NES.
Anyway...
Arkista's Ring is a fun NES game that no one talks about. It's an Zelda-like combat game where you try to find the key to the exit of each stage.