A slender wheel mouse includes a mouse case, a base, a circuit board, a supporting member, a tilt frame, a slender wheel, an encoder, a slender ratchet, a resilience sheet and several switch elements. The transition arm is coupled to a member that is housed in a channel defined by a rotating member. The wordline is operable to select the SRAM cell for read and write operations when activated and to de-select the SRAM cell when de-activated. The jumbled ball display device preferably does not affect the outcome of the game played on the game apparatus.