I think Suidoken fits here? Heard a lot of good press about it and I’ve enjoyed the little I’ve played so far. Originally a PS1 game but the ROM I have is for a Sega system, Wikipedia says it was Sega Saturn.

Wonder Boy in Monster World! Fuck! I loved that game so much!

It’s like a Zeldavania RPG, is the best I could describe it. Can’t remember the story for shit, but I played the balls off of that game. A bit grindy, but that is part of the appeal.

dreamcast had the best versions of: spider-man, and star wars episode 1 jedi power battles

Some additions to your list above. BTW I list Streets of Rage too, because you have Golden Axe and Comix Zone listed. Those aren’t fighting games. Some games are better on SNES, like Zombies Ate My Neighbors, so I don’t recommend it here.

Genesis / Mega Drive - Must Haves:

• Streets of Rage 1+2+3
• Thunder Force 3+4 (4 is also known as Lightening Force)
• Shinobi 3 - Return of the Ninja Master
• Dragon’s Fury (also known as Devil’s Crash) + Dragon’s Revenge
• Gunstar Heroes
• Alien Soldier

Genesis / Mega Drive RPG / Adventure:

• Shining in the Darkness
• Wonder Boy in Monster Lair

Genesis / Mega Drive - More:

• Aladdin
• Adventures of Batman & Robin
• Mega Turrican
• Michael Jackson’s Moonwalker
• Splatterhouse 2+3
• Virtua Racing
• World of Illusion Starring Mickey MOuse and Donald Duck
• Teenage Mutant Ninja Turtles - The Hyperstone Heist

THE AVENGERS

If you’d like to try general action games as well:

• Gunstar Heroes
• Strider
• Final Fight CD
• Contra Hard Corps
• Streets of Rage 1-2

Also try Snatcher on Sega CD.

Other thoughts:

1. I’ll just note that Phantasy Star III, even if it is older-school grindy at times, is a really interesting take on multi-generational epic storytelling. I like it more than Phantasy Star IV.
2. Night Trap on the Sega CD is interesting to play around with for an hour just to see what FMV games in the 90s meant, for some interesting bad late 80s/early 90s acting, and to remember that was all it took to cause a national panic for awhile.

adding some i always found unique or interesting

• Flashback
• Cyborg Justice
• Ecco the Dolphin
• James Pond
• road rash
• Skitchin’
• General Chaos
• streets of rage (i liked 2 the most)
• Combat Cars
• Bonanza brothers
• World of illusion
• Quackshot
• Sunset Riders
• Action Fighter (i swear this isn’t a fighting game, it’s about evolving motor vehicles)

Loved altered beast in the arcade

If you’re going to play Ys then I’d recommend the TurboGrafx CD version over the Master System version.

As for Sega games, Wonder Boy in Monster World is really good. Wonder Boy III: The Dragon’s Trap is also good, although the remake from a few years ago is pretty much a top-to-bottom improvement so I’d go for that version.

Starflight for the Genesis would be another recommendation.

If you like rpgs, Skies of Arcadia was pretty fun on Dreamcast.

To add to others’ suggestions:

• Road Rash 1-3
• Micro Machines 2
• Lotus Turbo Challenge 1 & 2
• Truxton
• Bonanza Bros
• Ristar
• Aladdin
• Gunstar Heroes

These are all Genesis suggestions:

• Rocket Knight Adventures
• Sparkster
• Shinobi III
• Teenage Mutant Ninja Turtles: The Hyperstone Heist
• Rock n’ Roll Racing
• Thunder Force III
• Lightening Force: Quest for the Darkstar (aka Thunder Force IV)
• Dynamite Headdy
• Ranger X
• Gaiares
• Gargoyles
• Eliminate Down
• Alien Soldier
• Chakaan
• Dragon’s Fury
• Sonic Spinball (if you like pinball games, you might like this)

A couple interesting ones that I remember:

• Haunting starring polterguy
• Jurassic Park
• Aladdin
• Ghostbusters
• Castle of illusion starring Mickey mouse
• Road Rash 2 (maybe it doesn’t hold up these days)

https://en.wikipedia.org/wiki/Chakan:_The_Forever_Man

Sports Games

Well, I have bad news for you about a significant fraction of the Genesis’ library…

Some other decent Genesis/Megadrive titles I can think of off the top of my head: Gunstar Heroes, Vectorman, Megaman: The Wily Wars, Zero Wing (for the memes), Aladdin (which was a completely different and vastly superior game to its SNES coutnerpart), Blaster Master 2, Contra: Hard Corps, Ecco the Dolphin and its sequels, Jurassic Park, and probably loads of others I’m forgetting.

The Saturn is notable for having Radiant Silvergun locked to it, in Japan only no less, and I don’t think that title was ported or rereleased at all until the XBox 360 version. It’s the precursor to Ikaruga, which is itself on the Dreamcast.

If you’re into shmups, the Dreamcast is kind of a holy grail. It also has the first two Shenmue games on it.

Alas basically everything on the Sega CD is crap with few exceptions. I will probably surprise my readership by mentioning that I think Sonic CD is not one of them, as its easily the weakest of the classic Sonic titles. It has some cult favorites that are so bad they’re good, though, infamously including Night Trap, Time Gal, Corpse Killer, Sewer Shark, etc. For games on it that don’t suck, don’t forget that the first two Lunar games originated there, there’s Popful Mail, Keio Flying Squadron, Snatcher, etc.

The 32X is an interesting novelty but I’m not certain there’s a single compelling title in the entire library. Which, admittedly, is only something like 30 games.