SPSET 0,856 SPANIM 0,"I",30,856,30,857,30,858,1 Just know that these two lines make a cat walk. 0 is the sprite's ID (you need to assign each sprite an ID starting from zero) "I" probably stands for sprite index but I'm not sure. 30 means to switch display every 30/60 seconds (or 0.5 sec) 856, 857, 858 are for the cat's different sprites 1 loops this animation infinitely.