A game piece includes a substantially triangularly-shaped housing, an impact detection apparatus which generates a signal in response to an impacting blow to the housing, and a signaling apparatus which produces an audio or visual signal in response to the signal produced by the impact detection apparatus. A kit includes a first triangular game piece, a set of stickers sized to fit within the bounds of the triangular game piece, and an instruction set for playing a game with the first triangular game piece. Some kits include a second game piece.