(2007-05-27) As you probably know from my rants over at SHD-WK, I exchanged my right-handed mouse for a left-handed trackball a while ago. So this is the first Spiky's World that I drew with a trackball (a Logitech Marble Mouse, by the way). As you can see, it is doable -- but it takes three times as long, and the lines are shaky (you can tell if you know where to look). I'll have to see if in the future I'll dig out the mouse for drawing and use the trackball for everything else.