Don't take these as recommendations, most of these games probably aren't very good. Play them at your own risk, and also my game taste is bad anyways so
1. Cookie & Cream - it was just a fun co-op game I would play with my siblings, I remember enjoying it a lot, it was neat to help the other player on the other side of the screen in some levels.
2. Super Puzzle Bobble - This is the one with that dreadful, "worst box art of all time" American box art. The game itself is actually quite good, and the JP box art is great - that game oozed style, and was actually a pretty good entry in the Puzzle Bobble series. A shame the US box art sucked so hard.
3. Sin & Punishment: Star Successor - On my original list of 9 games I put "Mischief Makers", but if I had to choose another Treasure game I'd probably pick this one. Mostly because I think other Treasure games are already well-liked enough. I like how fully they utilized the main mechanics of the game.
4. Kirby's Dream Course - I actually thought this was a well-liked and popular entry, but I'm always running into people who haven't played it. I bet this game is still fun, honestly.
5. Digimon World - Probably sucks, but I spent way too many hours in that game to ignore it. It's one of those games when you were a kid and had a ton of time it was fun to get lost in, and felt very mysterious to me (relatively speaking, for Digimon game, that is).
6. Rakugaki Kingdom - Again bad US name/boxart, but in this case also bad game (really)! The US name is "Magic Pengel: The Quest for Color". It's not actually a good game, but I always thought the idea was super interesting. Think like monster battles but you draw the monsters to make them - I wish the main story and battle system were better because back in the day that tech was kind of impressive I thought.
7. Megaman Soccer - okay I bet anyone who knows this game likes it. I don't like sports games, but sometimes a game like this pops up and surprises me. I remember playing this with friends a lot back in the SNES days, but oddly never owning it. It was just always at a friend's house and I always had fun playing it. (EDIT: Apparently mostly disliked! So I dunno what to tell you, I remembered enjoying it as a kid.)
8. RayCrisis - I like the whole trilogy, but I gotta say RayCrisis perfected the concept (the final and best of the series). I still occasionally go back and play this game, but a lot of it is probably nostalgia blindness, really. Music is dope, too - the tracks are really long, and I don't think they loop actually (but I could be wrong about that).
9. SkyGunner - This one I barely remember, but I recall it surprising me and having a lot of fun with the flying and fighting mechanic. Really, I should give it another go - I always remember it being "that fun weird flying game I was surprised to like", but I never remember it much more specifically. I only rented it, never owned it, but enjoyed it a lot.
