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