I could get the hang of the game in less than 3 levels, and i could see the image before i got the right spot that advances me to the next level... but then again i am using a rather crappy laptop...
level 20 solution
first go to the second turnaround and use it
then drop the red battery and push it into its spot
turnaround, drop green battery and push it into its spot
then turnaround on the second machine, go to the first turnaround and use it then use the lift and finish the level