Utopia 4-24 is the 24th level in Utopia.
If you detonate the TNT, it's not much problem.
Release the release the boulder with the lazer bird. Be sure to detonate the TNT below, and grabbing a lollipop won’t hurt either. Then freeze the popcorn kernels to render the remaining structure unstable.
It's above the fortress. Use Lazer Bird to get.