Dry Fire

Man your turret as you fend off wave after wave of attackers in Dry Fire! Starting with the lowly foot grunt as your only adversary, progress through the stages to battle against stronger enemies, ones who are better armed and those driving vehicles. Fortunately for you, after every third wave you get a brief respite to upgrade your turret to better deal with these new foes.

Upgrades go hand in hand with dropped bonuses, in this case literally parachuted in to help provide some hasty repairs, give you a dramatic boost in firepower or to add the devastating bomb to your arsenal, for when the going gets really tough.