World 1 - Level 4
Clear the Way

Switch to Loof, and manipulate the three reflectors to guide the fireballs into each trouble-spot. The yellow paths and numbers are suggested paths and the order in which to build them.

To reach the bonus points in the upper left corner, you'll need to save one box (marked with a red "x") when you free Stinky. Do this by destroying one box, then quickly repositioning the reflector to spare the second box. Stinky can now push the second box out and use it to build a bridge to the bonus points.