Sadly, I got 200 patches in 30 minutes. Kind of imbalanced when I spent hours in a Volcano for 20-30 patches.
You create imbalance in your game and people will not spend. This is awfully bad. Besides, it just points out that Nitrogun is the main defense of choice. If you have 2 Nitroguns, you can get pass wave 13-15. Only 1 Nitrogun and get to level 10-12.