Here is the full list of all 38 Oddworld: Munch's Oddysee HD achievements.
Beat the Mudokon Pens
Collect 600 (un-regenerated) Spooces
Complete the level
Touch zero mines in Flouride Tanks
Beat the Hydroponic Vats
Beat Fuzzle Test
Beat Spooce-Shrub Forest
Collect 250 (un-regenerated) Spooces
Exit Raisin's Cave.
Grab the first Spooce in the game.
Get all the Mudokons in the level accounted for (before they end up getting slaughtered by sligs).
Beat the Sloghut 1027
Escape the Fortress
Beat Sloghut 2813
Beat the Paramite Run
Beat the Meep Herder Village
Beat Brewery to Be
Beat the Fuel Fields
Beat Magog Motors
Beat Dead River
Beat the Boiler Room
Beat Splinterz Manufacturing
Beat Reservoir Row
Beat Flub Fuel's Scrub Pens
Beat the Flubo Executive Office
Beat The Loading Dock
Beat Vykker Suites (and the game!)
Collect 1250 (un-regenerated) Spooces
Beat No Muds Land
Beat Labor Egg Storage
Get 8 Mudarchers in Dead River
Kill the Big Bro in his sleep in Splinterz Manufacturing
Finish level 23 with less than 1%-79% Quarma
Beat the game with 80%-99% Quarma
Beat the game with 100% Quarma
Rescue all the Mudokons in the game
Finish level 23 with 0% Quarma