An aspect provides a toy assembly comprising: a toy character; an enclosure including an enclosure biasing structure and positionable in a closed position to at least partially enclose the toy character; and a latch assembly including: a latching member; and a deformable member that deforms upon application of an electric current. The enclosure biasing structure is positioned to urge the enclosure towards an open position to expose the toy character. The latching member is movable between (i) a latched position in which the latching member is releasably engaged with a connecting member to hold the enclosure in the closed position, and (ii) an unlatched position in which the latching member is disengaged from the connecting member to permit the enclosure biasing structure to drive the enclosure towards the open position. Deformation of the deformable member causes the latching member to move from the latched position to the unlatched position.