Here is the full list of all 12 Nanotris achievements.
Ugh, I hate maggots
I don't believe in guns
Not even a scratch
Cubes? Bah, I don't need any to beat you
Someone called for an exterminator?
Do these cubes make me look fat?
Special weapons are for sissies
Unlimited power!
R.I.P. - Killed by a critter, ridiculed by all
That's all the arenas? Better start again
I love the smell of burning cubes in the morning
Never bring a gun to a Dance Off, you'll lose