The M-B PROTOTYPE is a Exotic pet in Pet Simulator 99. It can be obtained from the Tech Hive Egg and from the Alien Garden Egg.
Pets included in the Tech Hive Egg[]
- A-36 (90%)
- M-10 PROTOTYPE (9%)
- Robot Bee (??)
- M-B PROTOTYPE (??)
Pets included in the Alien Garden Egg[]
- Robot Bee (90%)
- M-B PROTOTYPE (9%)
- Gleebo The Alien (1%)
- Alien Arachnid (??)