Most private servers use @rebirth for their players to rebirth. Or else, try !rebirth, #rebirth or ask about for the rebirth command. I'm sure someone will help out.

The command @help or @command gives you a list of commands.

rebirth of living
Renaissance is a French word that means "rebirth."

When the Sun dies - that's it. There will be no rebirth.

In real Flyff you cant rebirth.

In a private server Flyff you can rebirth BUT only if the server has a rebirth system.

How to rebirth your character? Ask a admin and he/she will set your character's level to 60 master but he/she can only rebirth you if you're a hero, dont worry you'll still have your stat points.

Yes, there is a Sonic Rebirth PC game.