Salve R0J0hound. Thank you for this great script and for helping me.
The Sprite now has stopped rotating. Thank you. However, the value defined for the "speed" variable no longer works. I assigned the "speed" value for the "Move" value (Move pixels self.speed at angle self.angle_toMove angle) on both actions, but not solved.
Thank you again and sorry for the confusion about the analogy that I used to compare the type of motion.