Bulbmon

Bulbmon is a Machine Digimon exlusive to Digimon World 3. It is also known as Valvemon.

Digimon World 3
Bulbmon appears in Digimon World 3 as one of the first bosses you encounter. It rolls down and blocks the gondola that you are on, forcing you to fight it to get through. When it gets battered down to low HP, it will run from the fight. Later on in the game you will be forced to fight it again in the bug maze, only this time, it's bigger and much stronger and it will not flee like the last time. Instead, it will battle until the end.

Attacks
 * Mad Pump
 * Octagon Attack