Here is the full list of all 67 Ultratron achievements.
Player has fired 100000 shots in a game
Held one or more pets for 20 levels without dropping
Drone survived 30 levels
EMP shocked 50 enemies in one blast
30 kills with a single grenade
Drone survived 20 levels
Vanquished 10000 enemies
Double three way bouncy max power rapid fire gun
Double three way bouncy bezerk gun
Laser pet levelled up to maximum
Shooty pet levelled up to maximum
Rocket pet levelled up to maximum
Smartbombed 50 enemies with one blast
Detonated 10 bombfruits
Killed 1000 enemies with grenades
Single drone shot down 100 enemy bullets
Maxed turbo power and recharge
Collected 50 fruits
Killed 500 enemies with grenades
Maximum shields
Grenade add-on upgrades maxed
Upgraded rocket pet to maximum
Upgraded all pets to maximum parameters
EMP shocked 25 enemies in one blast
Vanquished 5000 enemies
Quantum-shifted through a boss
Upgraded laser pet to maximum
Upgraded shooty pet to maximum
Detonated 25 smartbombs in a single game
20 kills with a single grenade
Drone survived 10 levels
Maximum droid power
Defeated two bosses
Beat a level without firing a single shot
Maximum dot slurp range
Single drone vanquished 250 enemies
Maximum drone upgrades
EMP shocked 10 enemies in one blast
Killed 100 enemies with grenades
Held one or more pets for 10 levels without dropping
Defeated Letum
Awesome double three way bouncy gun
Defeated Lues
Smartbombed 25 enemies with one blast
10 kills with a single grenade
Player has fired 10000 shots in a game
Got 100% on a dodge stage
Vanquished 2500 enemies
Collected 25 fruits
Survived assault level without taking damage
Held one or more pets for 5 levels without dropping
Defeated Bellum
Got 100% on a challenge stage
Collected 1000 dots
Smartbombed 10 enemies with one blast
Consumed 10 consecutive fruits
Collected 10 fruits
Vanquished 1000 enemies
Defeated Ieiunitas
Collected 500 dots
Full complement of smartbombs
Vanquished 500 enemies
Maximum score multiplier
Collected 250 dots
Collected 100 dots
Player has fired 1000 shots in a game
Vanquished 100 enemies