| Unlockable: | How to unlock: |
| 2-Star General | Earn 2 stars on all of the original maps. This doesn't include DLC. |
| 3-Star General | Earn 3 stars on all of the original maps. This doesn't include DLC. |
| Baby Tank | Defeat 300 Baby Tanks. "Somebody in here needs new socks." |
| Bad Day Blimp | Defeat 20 Bad Day Blimps. "Let me show you my thumbtack collection." |
| Bird Deck | Reward: Collect the bird deck for 25 freezes! |
| Bounty Hunter | Defeat every Elite unit from the original maps. This doesn't include DLC. |
| Bullseye | Defeat 10 units at once by blowing up the V2 truck. |
| Chain Combo | Chain 20 combos in a row. You're on fire! |
| Day of Triumph | Beat every level in 24 Hours. On Heroic. No Restarting. No Failing. No Quitting. |
| Day of Victory | Beat every level in 24 Hours. This doesn't include DLC. |
| Dirty Hog | Defeat 1,000 Dirty Hogs. "The road never ends. The ride always does." |
| Dr. Strangelove | Defeat 10 units at once by blowing up a S-17 Skywhale |
| Efficiency is Key | Defeat 10 rounds in a survival mission with no towers. Items will help. |
| First Class | Earn one million points on one mission. |
| Flying Ace | Triumph over the Flying Ace. "I'll smoke out the enemy. You smoke me a kipper." |
| Fokker | Defeat 100 Fokkers. "Yes, that's its real world name." |
| Fun Deck | Reward: Collect the fun deck for 35 spanish flu! |
| Grunt Deck | Reward: Collect the grunt deck for 1,000 coins! |
| Hardcore Deck | Reward: Collect the hardcore deck for eternal fame (and 2,000 coins). |
| Hazmat | Defeat 2,000 Hazmats. "No, I will not clean your socks." |
| Heavy Transport | Defeat 100 Heavy Transports. "You suppose if we took out the ashtray we could fit Frank?" |
| Hindenburg | Triumph over the Hindenburg. "Frank, maybe the cabin should be non-smoking." |
| Huey Copter | Defeat 250 Huey Copters. "The helicopter has only one weakness. Physics." |
| Iron Deck | Reward: Collect the iron deck for 20 rewinds! |
| Itemized | Defeat 10 units at once using one item. |
| Jammed Jeep | Defeat 200 Jammed Jeeps. "Just 49 bucks for 4 cylinders, 60 horses, and real Corinthian leather." |
| Jumbo Combo | Defeat 20 units in one combo. Boomshakalaka! |
| Legendary Panzer | Triumph over the Legendary Panzer. "Victory is for the strongest, bravest, and best. Let's shoot for a tie." |
| Legendary Tiger | Triumph over the Legendary Tiger. "Do unto others as they would do unto you. Just do yours first." |
| Lieutenant Sakai | Triumph over Lieutenant Sakai. "You can land anywhere once." |
| Link Limbo | Defeat 10 units, one after another, using a pair of Link Towers. |
| Louie Copter | Defeat 100 Louie Copters. "Of course it's safe. It's a fuel filled brick. We, however, are in trouble." |
| Luxury Suite | Earn a whopping five million points on one mission. |
| Medic | Defeat 200 Medics. "Whaddya mean, no overtime?" |
| Minute Man | Complete one mission in one minute. |
| Momma Tank | Defeat 250 Momma Tanks. "Happy Boxing Day! We got you explosives!" |
| Mr. Moneybags | Stockpile $500 in a mission without selling any towers. |
| Never Give Up... | Survive 150 rounds. |
| Never Surrender! | Survive 200 rounds on Heroic. |
| Night Fokker | Triumph over the Night Fokker. "Fly until the last piece stops moving." |
| No Slow | Defeat a survival mission without slow towers. |
| Red Baron | Triumph over the Red Baron. "The English had a splendid joke. They said they were going to stop me!" |
| S-17 Skywhale | Defeat 20 S-17 Skywhales. "It's as creaky as a wooden trampoline, but it's still a doomsday machine." |
| Scrambler | Defeat 1,000 Scramblers. "Sometimes you're the fly, sometimes you're the windshield." |
| Sidehacker | Defeat 1,000 Sidehackers. "Umm… can I borrow your car?" |
| Spoils of War | Earn 10,000 coins. You don't have to have them all at once. |
| Starburst | Earn 30 stars. |
| Stubborn Runner | Defeat 1,000 Stubborn Runners. "Mamma always said to tell the truth. So I run like I'm crazy." |
| Super Trooper | Defeat 2,000 Super Troopers. "I just want to pump you to your full pumptential." |
| The Runner | Defeat 2,000 of The Runners. "Running is a mental sport. We're all insane." |
| The Thunder | Call it down! Unleash airstrike 7 times in one mission. |
| Toastmaster | Defeat 1,000 Toastmasters. "Got any questions about propane or propane accessories?" |
| Tour of Duty | Play once a week, every week, for 6 months. Yes, we mean it. |
| V2 on a Truck | Defeat 100 V2s. "The V2 unleashes an unstoppable torrent of fire. So where did we park it?" |
| Veteran General | Complete all of the original maps. This doesn't include DLC. |
| Whirly Deck | Reward: Collect the whirly deck for 30 mines! |
| Wingnut | Defeat 100 Wingnuts. "We have a perfect flying record. We've never left one up there." |
| World Deck | Reward: Collect the world deck for 40 fire traps! |
| Zeppelin | Triumph over the Zeppelin. "There is always something you've missed. Hopefully it's the ground." |
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