Here is the full list of all 12 Ghostbusters: Sanctum of Slime achievements.
Finish the first level.
Unlock every level and defeat the final boss.
Find all the collectibles hidden inside objects in each level.
Revive any teammate 20 times.
Get 100% score with the trap.
Watch each comic without skipping.
Play with each character.
Destroy all the expensive LCD televisions in the hotel.
Kill a Slime Abomination with the wrong weapon.
Finish a vehicle level.
Defeat the Subway Smasher.
Finish a chase level with at least 75% of the Ecto-shield up.