I win every level with gold medal and only one try with the same strategy (just two stacks: one at the right pointing at the left and other at the left pointing at the right, both with one piercing block at the bottom and the rest just pure flame blocks)
Level 30 must be a joke ¬¬ Just forget about the balls at the top and put the first bar at the edge of the one on the screen and then put the second one at the edge of the first one
This is seriously one of my favourite games. It shows how a creative idea and a funny credits song can make a simple game into a cult game. Note: for those of you who are having problems in beating the game there is a walkthrough in the description of the game.