Rumi Aikawa is a playable unit in Metal Slug Attack, as the third Box Crank unit, introduced in the Extra Ops "Amadeus' Revenge". Unlike White Baby and Jin, the previous two Box Crank units, Rumi has low health. She makes up for this deficiency with her special, where she calls a supply helicopter (a Regular Army Helicopter) and tosses Heavy Machine Guns and Bombs. * Heavy Machine Gun: Provides a 2 second damage buff. * Bomb: Instantly recharges the unit's special. When placed in a deck with Special Trevor, they form the "Support Troops" team, lowering their AP costs by 10%.