Successfully complete the indicated task to unlock the corresponding achievement.

Achievement	How to unlock
Back To The Basics	Complete a stage without a Cannon Upgrade.
Crab Battle	Complete The Underwater Stage.
Droppin Bombs	Use every Tank Bomb at least once in a single stage.
Earn All The XP!	Reach Level 8.
En Fuego	Complete Stage 3.
Halfway There	Reach Level 4.
Keep Cool, But Do Not Freeze	Complete Stage 4.
Like A Boss	Defeat every Boss in Boss Training Mode.
May The Forest Be With You	Complete Stage 2.
Mod Man	Unlock all Hardcore Mods.
Survivor	Last 10 minutes in Endless Mode.
Take Me To Your Leader	Complete Stage 5.
The Colonel	Unlock Colonel Faulk's Tank (Secret)
The Desolate Wasteland	Complete Stage 1.
The Exterminator	Complete a stage destroying every enemy.
They Can't Repel Firepower Of That Magnitude	Use every Cannon Upgrade at least once in a single stage.
War Hero	Beat the Campaign.
With Artillery, War Is Made	Use every Tank Bomb and Cannon Upgrade in a single stage.
You Can Be My Wingman Any Time	Complete a stage in Co-Op mode.
You Got Heart Kid	Complete a stage without losing any hearts.
You Never Forget Your First	Unlock your first Hardcore Mod.
You're A Modder Harry	Complete a stage with a Hardcore Mod equipped.