Here's how to fix the "mario game"(JAMPGAMETEST): on line 623: SPHIDE 3:SPSET 3,230 change to SPSET 3,230:SPHIDE 3 on line 646: SPOFS I,IX[I],IY[I],IZ[I] change to IF I < E THEN SPOFS I,IX[I],IY[I],IZ[I]