Unlock the following costumes by performing the corresponding tasks:
COSTUME - HOW TO UNLOCK Eyebrow Tank - You won't find anyone with thicker eyebrows! Attack Tank - A good attack? A good retreat, of course! Bandage Tank - He'll be OK. Just a small head wound... Construction Tank - Can he retreat? Yes, he can! Business Tank - He greases the wheels and does the deals! Log Cannon - Is that really a log...? Ninja Tank - The original sneaking suit. Helmet Tank - No need to retreat with this on your noggin! Spyglass Tank - Well, it looks like a spyglass, at least. Dragon Tank Z - Let's fly, fly, fly! Big tank adventure! Afro Tank - How about a dance-off instead? Fuedal Tank - He's not a samurai. He's a fisherman. Big Boss Tank - Even this tough-as-nails hombre knows to retreat. BabyBottleCannon - Don't retreat from raising your kid! Festival Tank - He won't be so festive once you poke him! Greaser Tank - Yo! Fuggedaboutit and just retreat! Maid Tank - Maid to order. Onion Tank - From your grocer to the battlefield! Bottle Cannon - What's in the bottle? Water. Yep, water. Flower Tank - This is the dawning of the Age of Atankquius! Santa Tank - Ho ho ho! Merry retreat! Dog Tank - He'll show that cat what for! Ukulele Tank - Aloha. In Hawaiian, it means "retreat." Robot Tank - Programmed to retreat! DJ Tank - Retreat to the dance floor! Witch Tank - I put a spell on you! Devil Tank - Perfect for a devilish retreat! Angel Tank - Those wings make for an easy retreat! Ghost Tank - I ain't afraid of a tank ghost! Magician Tank - He prefers to be called an "illusionist." Stag Beetle Tank - Really? That's the reward? A STAG BEETLE?! Dynamite Tank - General Abrams' secret weapon?