Full list of all 27 Paradox Error achievements worth 4,000 gamerscore. It takes around 0-0.5 hours to unlock all of the achievements in the base game.
The base game contains 12 achievements worth 1,000 Gamerscore, and there are 3 DLC packs containing 15 achievements worth 3,000 Gamerscore.
Beat level 3
Die 18 times in a single playthrough
Find the "nothing here" message in level 3
Beat level 2
Die 9 times in a single playthrough
Die 6 times in a single playthrough
Jump 100 times in a single playthrough
Jump 50 times in a single playthrough
Stay 5 seconds on the moving platform in level 2
Beat level 1
Jump 10 times in a single playthrough
Press the new game button in level 1
Die 35 times in a single playthrough
Die 25 times in a single playthrough
Jump 175 times in a single playthrough
Jump 150 times in a single playthrough
Jump 125 times in a single playthrough
Die 85 times in a single playthrough
Die 75 times in a single playthrough
Die 65 times in a single playthrough
Die 55 times in a single playthrough
Die 45 times in a single playthrough
Jump 300 times in a single playthrough
Jump 275 times in a single playthrough
Jump 250 times in a single playthrough
Jump 225 times in a single playthrough
Jump 200 times in a single playthrough