Here is the full list of all 19 Twin Robots: Ultimate Edition achievements worth 1,000 gamerscore.
Press the red button at the last minute, just right before your twin gets crushed
Unlock all other achievements
Jump 75 times in a level (using the same robot)
Finish Level 12 with your twin still trapped (and alive!)
Finish Level 02 in under 2: 00, with max 2 jumps per robot
Finish Level 22 (at 100%) in under 4m 44s
Find the painting zone in Level 20 and change the color of 1 robot
Collect 16 batteries across the game
Share energy when your twin is about to die
Give almost all your energy to your twin
Find and kick the soccer ball in Level 11
Step on all energy tiles on Level 8
Perform 10 consecutive wall jumps
Finish Level 7 without sharing energy at all
Finish even Levels 2, 4 and 6
Finish odd Levels 1, 3 and 5
Finish Level 02 (at 100%) in under 2:00
Finish Level 01 (at 100%) in under 1:00
Run against a closed door