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