Here is the full list of all 12 Gato Roboto achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Finish the game.
Finish the game with 100% completion rate.
Obtain the Hopper from Rebba.
Clean up the Ventilation System.
Obtain the Repeater from Rebba.
Fix the malfunctioning Heater Core.
It will live on in our memory.
Drain all of the water in the Aqueducts.
Defeat a squeaky foe.
Finish the game without collecting a single health upgrade.
Finish the Heater Core before acquiring the Spin Jump.
Finish the game in under 1 hour.