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