I am just going to list a few (or a ton). I have 90% of and still obtaining the rest of the best PS1/PS2 games in existence. I will be forgetting a lot on SNES/Sega though as I am coming off the top of my head. Also I will try to stick to Obscure.
---Sega Genesis---
Gunstar Heroes
Dinosaurs for Hire
Batman & Robin
Phantasy Star series
---SNES---
Secret of Evermore
Secret of Mana
Super Metroid
Final Fantasy III (really is 6)
Super Mario RPG
Rock & Roll Racing
King of Demons (Majyuuou)
Star Wars series
Chrono Trigger
---PS1---
Castlevania Symphony of the Night
Megaman Legends 1 & 2
Star Ocean The Second Story
Vagrant Story
Legend of Mana
Dragon Valor
Chrono Cross
Einhander
Fear Effect 1 & 2
Dino Crisis 1 & 2
Granstream Saga
Colony Wars series
Kings Field 1 & 2
---PS2---
Drakengard 1 & 2
Star Ocean Till' the End of Time
Xenosaga series
Prince of Persia series
Drakan: Ancient Gates
Extermination
Eternal Ring
Kings Field: Ancient City
Evergrace
Dawn of Mana
Okay that is enough for now. I can list MANY more or explain any if you guys wish, or go look them up yourself!
---Sega Genesis---
Gunstar Heroes
Dinosaurs for Hire
Batman & Robin
Phantasy Star series
---SNES---
Secret of Evermore
Secret of Mana
Super Metroid
Final Fantasy III (really is 6)
Super Mario RPG
Rock & Roll Racing
King of Demons (Majyuuou)
Star Wars series
Chrono Trigger
---PS1---
Castlevania Symphony of the Night
Megaman Legends 1 & 2
Star Ocean The Second Story
Vagrant Story
Legend of Mana
Dragon Valor
Chrono Cross
Einhander
Fear Effect 1 & 2
Dino Crisis 1 & 2
Granstream Saga
Colony Wars series
Kings Field 1 & 2
---PS2---
Drakengard 1 & 2
Star Ocean Till' the End of Time
Xenosaga series
Prince of Persia series
Drakan: Ancient Gates
Extermination
Eternal Ring
Kings Field: Ancient City
Evergrace
Dawn of Mana
Okay that is enough for now. I can list MANY more or explain any if you guys wish, or go look them up yourself!