I have to second Live a Live. It's absolutely fantastic.
The only way you can play it though if you don't know Japanese is with the fan translation.
If you feel bad about emulating a game that you don't own, buy it off eBay or something first, then download it.
But it's really quite amazing. I'm not totally sure why a Squaresoft RPG was never ported Stateside, but maybe it has to do with some of the mature themes in it.
You it's basically many small RPGs set in different time periods that you can tackle in any order you like. They're all very different for great variety in playstyle. Like the ninja chapter where you play a lone ninja who must navigate a large maze-like fortress and kill an entire ninja army. Or the robot level where you have to solve a murder mystery in the future. Or the wild west chapter where you set up goofy traps to try and put the slip on some bandits. Or the present day wrestler who ends up fighting a clear ripoff of Hulk Hogan. Then, when you beat all of them, everything comes together for the final two chapters in the middle ages.
It's pretty wild, good stuff.