World 10 - Level 1
We End at the Beginning
The trouble comes at the very end of this level. Immediately move the reflector left along the green arrow, then exit the teleporter again. Wait a moment for fireballs to go away, then enter again and move to the yellow "X" safe spot. Run quickly along the white path, wait just a moment for the fireballs to pass, then walk up one step to the white "X". Now run counter-clockwise around the level. But don't wait up... a fireball will be just behind you!