Flop
- Full Name: Flop
- Date of Birth: Unknown
- Place of Birth: Monster Land
- Currently residing in: Monster Land
- Parents: His father's name is Ace, his mother's name is unknown
- Special characteristics: Loves to be "good," unlike all his other fellow monsters
- Often seen with: Eyeglasses, baseball cap and a backpack
- Friends: Sharp, Glutton, Dippy, Chloe
- Enemies:
