Here is the full list of all 32 SOUTH PARK: SNOW DAY! achievements.
Start a run with someone who has Socially Transmitted Distraction. They say it started in a lab out in California somewhere.
Defeat 10 Vampire Kids.
While Invisible, defeat a human boss with a melee attack.
Defeat Stan within 25 minutes of starting your run.
Toot on an enemy faction leader while dead.
Defeat Cartman without damaging any stationary decoy.
Dance while reviving an ally.
Use Cheesy Zombies on a Necro.
Revive an ally with a Cheesed Necro.
Kill an enemy with an aerial attack after floating with Moon Jump for at least a second.
Kill an Ent with Bleeding damage.
Fart on 3 Assassins using Fart Escape.
Make at least 4 enemies Vomit with no more than 1 second in between each.
Find and activate every Rulebook across an entire run, and live to tell the tale.
Damage an enemy in your Event Horizon using your own projectile.
Finish a map with one extra Rulebook applied.
Increase the rarity of 10 upgrades to Rare or better.
Relieve the buildup of natural pressures in the gastrointestinal tract through quick, albeit semi-musical, bursts of gaseous release.
Defeat Mr. Hankey.
Kill 50 Pooplets in one battle.
Defeat Cartman in the foothills.
Acquire an Ultra-Legendary Upgrade.
Defeat Liane at the church.
Heal 150 points of damage with a single Healing Totem across any number of allies.
Defeat Stan at the playground.
Kill 3 enemies with cannonballs.
Become an honorary Marshwalker.
Defeat Princess Kenny at the Town Square Ampitheater.
Defeat 10 enemies with weapon strikes from the air.
Defeat Kyle in his sacred grove.
Acquire a Legendary Upgrade.
Set 4 or more enemies on fire with no more than 2 seconds in between each.