Monster High™ Skulltimate Secrets™ Achievements Here is the full list of all 20 Monster High™ Skulltimate Secrets™ achievements.Filter Achievement View View Image viewList view Sort by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc What are achievement flags? Click to find outApply Welcome to Monster High!The doors of Monster High have opened to welcome you. Be careful not to drop a screw!Get the Simulacrum Key. How about a dip in the sea?Get the Sea Monster Key. Be careful not to get fleas!Get the Werebeast Key. Fancy a vegan blood shake?Get the Vampire Key. A good pair of sunglasses is a must!Get the Gorgon Key. Bandages are the latest fashion!Get the Mummy Key. Watch out for piranhas!Take a dip in one of the Monster High pools. What secrets is the school hiding?Dissipate an orb of energy in a Hidden Room. Restore the balance!Dissipate all the orbs of energy in the Hidden Rooms. Knock, knock! Who's there?Open the Ancient Door. Creepy-cool high school!Restore the balance in Monster High. Something to howl about!Collect 100 Monster Points. Scream-tastic style!Collect 10 customization items. Can you creep a secret?Open 10 chests. Spooktacular skills!Knock over 10 Garbage Goblins. Fab-boo-lous!Collect 10 Fearbook Pages. Totally clawsome!Open 3 doors with Clawdeen’s help. Electrifying!Open 3 doors with Frankie’s help. Vamp up the fun!Open 3 doors with Draculaura’s help.