Phantasy Star IV Cheats :
LeVel 99 Glitch
If you ever happen to get a character to reach level 99, this odd glitch will occur. Instead of putting a level cap, when you reach level 99 all of your characters will be leveled down to around 40~50. And everytime you should go up a level, your character will go down another level. Although your stats screen will still say you are level 99.