Hmm maybe the slide bug is a little more serious than I thought then. I think it happens because the image changes to different dimensions when you slide and it somehow messes with my code that stops you from going through a brick if you are right up against it. I tried to fix it once before but messed it up somehow, but I'll try it again.

I have no idea why, but when I run this on my computer out of Greenfoot, it's all choppy, but when I run it on the site, it's a lot smoother!