Marshmallon is a character version of the card "Marshmallon".
It appears as a Normal Partner available in Yu-Gi-Oh! Duel Arena, with a default of 3 Rental Points. Its partner ID is P070. It also appears as an opponent at Stage 6-2 under Quest mode.
A soft marshmallow monster. Unexpectedly scary when it opens its mouth.
Mumble mumble... (I'm told I look scary when I open my mouth, so I'm trying not to talk much)
A special "Stall Burn" Deck that seals off your opponent's attacks and then whittles down their Life Points. Use monsters like "Marshmallon" to build your defenses and then use card effects to gradually deal damage to your opponent.