The 2-player version of this game is Allied Leisure's 1975 'Dyn O' Mite'. Subsequent 4-players versions of this game were released as Allied Leisure's 1976 'T.N.T.' and Allied Leisure's 1976 'Boogie'. Playfield art has a likeness of 1970�s American television actor Jimmy Walker saying his catch-phrase "Dyn-o-mite!" 'Rock On' may be the first solid state game put into production by any manufacturer. See also Mirco Games, Inc.'s 1975 'Spirit of 76'.