Here is the full list of all 21 El Paso, Elsewhere achievements.
Get the "Thanks for Believing" ending.
Find all projectors.
Roll 150 times.
Get the "Scars Fade" ending.
Defeat Draculae.
Stake 250 enemies.
Find all Pill Cop segments.
Dive 150 times.
Collect the Launcher.
Defeat Djedefre.
Kill the Burned Man.
Kill the Angel.
Collect the Uzi.
Kill a mega enemy.
Kill 5 hostages.
Heal 50 times.
Hit 1,000 weak points.
Kill the Puppeteer for the first time.
Save 10 hostages.
Clear the first Landmark level.
Clear the tutorial.