K here’s what I got so far, I really did just type this o god. Sorry bout the lack of formatting, I was just typing it up lol
Platformers/Side Scrollers/Beatem’ ups:
Contra Hard Corps - OG Contra action, hard as balls, and a damn good one to own
Castlevania Bloodline - One of my favorite Castlevania games, Stars dude with a whip and dude with a spear and you go around the world spearing the shit out of everything.
Rocket Knight Adventures - You’re an Armadillo and you got a sword and you kill things. You also have a badass rocket booster and each level has something different in it. Rich and colorful.
Quackshot - One of the best Disney games made, you’re Donald Duck going around exploring ruins and shit, and some levels have you explore and backtrack. Kind of easy, but a really good time.
Alex Kidd in the Enchanted Castle - Quirky little platformer, had 3 games before it on the Master System. You punch the shit out of cars and fish, and fight bosses using paper rock scissors. Great game.
Lion King - Shut up, the game owns, and is Flymike endorsed. Go buy it, it’s like a dollar everywhere.
Sonic/Streets of Rage/Golden Axe/Shinobi - Classics, everyone and their mother has played these games.
Strider - Port of the arcade game, you climb walls and kill bosses in futuristic Russia and theres badass music and sound.
Maximum Carnage/Separation Anxiety - Really great beatemups, Spiderman and Venom punching and chomping everything in sight.
El Viento - Very colorful sidescroller where you’re an anime chick throwing boomerangs at gangsters in a futuristic 1930’s era world. Really good music and controls.
Growl - Ported from the arcade version, and just as badass. You’re an Indiana Jones lookalike guy with a whip and you fuck people up with it for them beating on the wildlife. Also rocket launchers and a dude throws a tank at you.
Michael Jackson’s Moonwalker - Pretty fun game, you moonwalk around and save kids from mr. Big or whatever then turn into a big fucking robot and shoot lasers.
The Lost Vikings - You control 3 vikings trying to get back home from wherever, and the trick is, you control one at a time, but each has their own ability so they have to work as a team to get there. Puzzles galore.
Splatterhouse 2 and 3 - Sidescroller where you beat up corpses, zombies, spirits, witches, floating heads, floating hands, and all sorts of other creepy shit. Oh, and shotguns.
Shoot em’ Ups: I’ll just let you know if its vertical or horizontal, because most of them have the exact same premise: Blow shit up and don’t die.
Raiden Trad - Vertical
Gaiares - Horizontal
Fireshark - Vertical
Phelios - Vertical
Urban/Jungle/Desert Strike - I really enjoyed these games, they are top down mission based games where you have tasks in each level, and have to do each without dying. Controls are good, and they are all easy to find.
M.U.S.H.A. - One of the best shooters out there, the music is amazing, the graphics are great, and the controls are tight. Kind of a bullet hell at times, but fun over all. Pretty hard to find though, could probably get it cart only for 50 or so (I’m still missing this one dammitoahfaoihpiajwpmnapifj)
RPG/Strategy Games:
Shining Force/Shining Force 2 - Great Turnbased Strategy RPG games, they have a pretty intricate plot, and the plot arcs over from 1 to 2 pretty well. Your units level up on the field and get new abilities as they go. Think Fire Emblem but classy and not in Japanese. Not too hard to find.
Phantasy Star 2 and 4, not 3 - These 2 games are the shit, Turnbased RPG with a lengthy play time. PS3 was pretty shitty I thought, but I’m sure its got its good points too.
Herzog Zwei - Turnbased Strategy where you control an army of Mech things and blow up other Mech things. You upgrade your units so you can kill mech things faster. Game has a steep difficulty curve. Not easy to find.
Crusader of Centy - Zelda-like overhead action rpg, but its just got more oomph that Zelda does, can’t explain it. You talk to animals and go on adventures and stuff. Hard to explain without giving the plot away.
Sports Game:
Mutant League Football/Hockey - Awesome sports titles, you play as monsters and zombies, and you can kill the ref and cheat. These games just reek of awesome, Hockey is kinda hard to find though.
Games that need their own classification:
Out of this World - Kind of a sidescroller, but with a twist. It tells a story of a guy thats trapped in an alien world, and you have to get him home. The twist is, you have to be able to react to things, like dodging bullets and bulls. Game is very movie like. Not for people easily frustrated.
Road Rash series - You ride on vehicles, punching and kicking people next to you trying to win a race. Old school fun.
That’s my tentative list for now, If I missed anything really good, then shoutouts to the forgotten ones cause I’m tired as hell. Enjoy!