GigaWaruMonzaemon is the result when WaruMonzaemon absorbs several Monzaemon. It is a giant version of WaruMonzaemon with serrated claws jutting from its left arm and both feet. GigaWaruMonzaemon wields a cookie-cutter shaped like a teddy-bear face in its right hand.
- Heartburn Blast (Heartbreak Attack): Cuts out a glowing pink heart.
- Mega Heartburn (Giga Heartbreak Attack): Hurls a pink heart made of pulsating energy.