
Creepy Basement: The Keymaster has one, and tries to convince you to stay away from it (or at the very least not to touch anything after beating his level.) Why's he so anxious about keeping you out? A Man in the Iron Mask lies imprisoned down there.Cool Gate: One of the elements in the game is a portal that teleports you vertically.
Color-Coded for Your Convenience: The orbs, the pads and the portals are differently colored according to the type and intensity of their effects. Averted in practice mode, where you get to place all the checkpoints you want. Checkpoint Starvation: There are none in normal mode. The Demon Guardian went off the deep end which led Rob to seal him off from the outside world. The Demon Guardian was the only one who could open it. Both ARGs, however, only led to two 2.1 codes for the Vault of Secrets, which of course only gave icons once entered. Because of the entity's Slasher Smile, it may very well be the Eldritch Abomination depicted in the glyphs.
It adds some time-travel themes to the ARG which suggests that the "Vault" and its keeper correspond to the prison inside the Keymaster's basement.
Shortly after, a follow-up called "Cod3breaker" began. All this suggests that there's more to one of the game's Vaults than we can see. They mention that the demon's unstoppable and that there's no way they can only get out by themselves. Beginning with a hidden image of a tentacled 2.0 monster on top of a series of glyphs and messages, it's noticeably more serious than even the outer narrative of 2.1's characters, and features someone trapped in a place that they only call the Vault, stuck with the demon that owns it.
Alternate Reality Game: During the official 2.0 Rewards, an ARG called "Octocube" was started. Spooky: (after the Keymaster calls the player out for taking Spooky's Secret Coin) "What does "Glubfub" even mean?"