The trick is to HOLD the fire button instead of press it. Upgrade Practice to 50%, then Weapons to 18%, then practice to 100%, weapons 100% and finally the car to 100%. It takes awhile and gets boring. The waves are too long.
I like it, but it miss some features like the shortcut buttons from stick war I. Having to click on the magikill then on the skill then on field is a lot to process when you have to attack, create units and do other stuff. A sugestion is to have a default shortcut to the unit or group of units, or the option to create shortcuts from groups you select. Also, the miners could have a default setting to pick up gold instead of being idle. I can't count how many times I looked back to the base and there was 3 or 4 miners doing nothing. Besides that, the game is great.
Real cool and funny game! The controls are simple and it's so much damn fun, I feel like a nnja with a rainbow pistol who can ride giraffes. Thank you!