Box Spring

Box Springs are objects in Mario vs. Donkey Kong: Minis March Again!, being introduced in Room 2-5 of Sandstone Stroll. They are contained in flashing green boxes found on the ground. When the player taps a Box Spring using the stylus, it briefly releases either a Yellow Spring or a Blue Spring, as indicated on the front of the box. If a Mini is directly above a Box Spring when it is activated, it is launched either directly upwards by a Yellow Spring or forward in an arc by a Blue Spring.