Sorry in advance for what is probably such a simple question. I stumbled on SGDK2 a week or so, have done the tutorial, read all the help and perused some of the postings here. Looks like a great framework, but having trouble getting off the ground. I created a simple project that has a rotating sprite and that was straightforward, but now I would like to make it move across the screen on its own (i.e. not due to user input). Try as I might I cannot get my sprite to move. I added sprite rules for AlterXVelocity, AlterYVelocity, PolarAcceleration, MoveByVelocity, AccelerateByInputs and LimitVelocity. Nothing has worked. Any help would be greatly appreciated!