Basement

The Basement is a limited-time substage only available during Halloween.

Spawn and Entering

During Halloween, in stages in the second half of the quest, a trapdoor may spawn. Clicking on a trapdoor with a Spooky Key will cause the player to enter the Basement. Clicking on the trapdoor without a Spooky key will result in the alert "It's locked..." and failure of entrance.

The trapdoor behaves exactly as a landmark - it can be destroyed with explosions, Shadow Siphon, and by Bosses. It can be bubbled or frozen.

Stage Behaviour

Upon entrance to the Basement, all Spooky Keys are removed from the inventory. For each Spooky Key removed, the player gains a status effect for 30s. When this status expires or is removed, the player dies. As is with all time-based statuses, the timer stops decrementing upon completion of the stage.

The Basement does not have a boss, but instead has high stage power and monster density. (verify density)? Any Strangers that spawn are in ghost form. Upon interaction, instead of performing their regular action, they are rescued from the Basement and gives a reward to the player. These ghosts can be killed, dropping loot as normal. In particular, interacting with ghosts when wearing Maniac's Mask will kill instead of rescue.

The Basement has a ladder. Upon use, the player exits the stage entirely, leaving the original stage uncompleted. The ladder behaves similarly to the trapdoor and can also be destroyed, leading to an unfortunate death for the player upon status expiration. Another trapdoor may spawn in the original stage upon re-entering.