Persona 4 cheat engine xp cheat allowed me to de-level to level 0

[Spacebeagle]

I used Cheat Engine cheats to break the game, and somehow leveled down from level 89 to level 0, and I found that level 0 gives me 999 HP and 16 SP, and says on my status menu shows no number for player level. Just wanted to share a cool thing about the P4 level system.