Student having trouble with Bounce Off command

My student is trying to have his alien bounce off the cactus when they touch. His code is below. What changes need to be made in order for this to happen?

Thanks in advance!

If you search “bounce off” in the forum, there are many different threads that address similar issues. I wasn’t sure which one would be the best fit for your student’s project, but it might be worth taking a look at them. Hope this is helpful!

Miss Clarke,

Just checking in - were we able to figure out the code needed?