Hard Level 13: Twister

Waves: 14
Lives: 1
Cash: $50

You only have one life on this level so be careful! There is only one tower which can quickly and effectively slice through creeps on their straight paths, so that is what I've concentrated on. You need to set each laser up very accurately so that its ray will shoot straight along the DOWNWARD path it is next to. That way it will slice through more creeps as they move away from it. It takes practice to do this.

You will be quite safe if you just stick to lasers for the first few waves. You can see how the top right laser is slicing through lots of creeps at once.

By about level 6 you need to leave enough dollars to buy some blaster towers. These need to quickly be upgraded to level 7 in order to kill the ones that I call the "impervious creeps". As you can see the blaster bullets are diverted around them - except for level 7.

This level took many hours to beat.