YES! game 100% complete!
Tips for others: 1. Once you have decent equipment, go for survival! You can get so much money in it. I'm talking like more than 100000 money! Which is enough to (2.) Get the ''infinite ammo'' item. The ''infinite ammo'' gives you... well... infinite ammo. Shocking, I know. 3. Get the random gun. This way you can get explosives in every level. It's an instant win. While starting a level restart it until you get the explosives.
Also the other upgrades help a lot!
Also if you want the ''Combo master'' achievement, go to vault defense level 7, shoot the bears to about half HP and wait for enemies come to the screen, use the nuke right when an enemy is about to touch the vault. Enjoy the ''Combo master'' achievement!
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