Instead of breaking your finger, go and get this simple program from SourceForge.net. It is an auto-clicker that I use personally. Auto-clickers can only be dangerous if you forget to turn them off before moving to another program or to Windows. http://sourceforge.net/projects/hf-auto-clicker/
Obviously, the secret here is to master the use of Easy Auto Clicker 2.0. I'm at level 100 now and the game lost its charm many levels ago. I like the look and design of the game, but there just isn't enough to it.
Developer,
This is singly the best Time Waster game that has ever been designed. After installing a reliable auto clicker, I became hopelessly addicted to progressing through the endless levels of Supreme Firepower. Darn you. Gimme back my time.
I do not get this game. The enemies never evolve. There is very little play value let alone replay value. You should get someone else to help you write games.