Can use basic cannons to beat most levels. Use only 2 ice cannons to beat level 11.
Cheese method
Press F12 to open the console and enter the following:
var r = cr_getC2Runtime();
Copy the following line to your clipboard:
r.all_global_vars[3].data=X
Start the game, and on each level, change X to the number of kills it tells you to reach and run the code.
(10, 25, 40, 65, 40, 70, 50, 200, see below, 100, 40, 30, 60, 50)
When it says to hold out 360 seconds (level 9), instead run:
r.all_global_vars[10].data=0;
After entering each command, focus switches to the game, so you can press Enter to proceed to the next level and Alt+Tab to return to the console.
