1. Shining Force 3 .there were 3 installments and a bonus disc. This game made me buy for the first time a Japanese converter for a game system to get the last 2 installments
2. Lunar and Lunar Eternal Blue . from the Sega CD, I played the playstation remake of Lunar 1. it was good, but last boss is WAAAY too hard, and you can't exit the final dungeon to level up if you're too weak.
3. Suikoden 2 - playstation
4. Fire Emblem - 3 games for Gameboy advance. Best way to kill time on a long flight
5. Tear Ring Saga, playstation. Basically a rip off of Fire Emblem, but very well done. But harder than it should be, and I found it necessary to spend some time grinding
I have others that are classics in my mind, but would never consider replaying such as Phantasy Star 2 and Final Fantasy 2. But the above games are replayable
Some mentioned Vay for Sega CD, yes I played it through but don't remember it too well.
And for the guy who said people would give you flac for liking Phantasy Star 3... Yes. Yes, they should