Chest Teleporter

Chest Teleporter is an active item.

Effects

 * When used on a chest, teleports it to the next chamber.
 * Teleported chests will either appear in the starting room or the room right before the boss room.
 * Teleported chests will upgrade in quality if they are teleported to the boss entrance room.
 * The only exception to this rule is the R&G Dept., where chests will always appear in the starting room. However, they can still be upgraded.

Bugs

 * If the Chest Teleporter is dropped, then the previously teleported chests won't appear in the next chamber.
 * If the player teleports a Rainbow Chest given to them as part of Rainbow Mode and the chest ends up in the next floor's pre-boss room, they will be able to take all of its items.
 * If the Chest Teleporter is used to transport a glitch chest to the Forge, opening it will teleport the player into a glitch version of Bullet Hell. Taking the exit elevator from there will soft-lock the game on an endless loading screen.

Trivia

 * The synergy is a reference to a common trope in media with teleporters, where teleporting into a space occupied by another living being kills them.
 * The "leveling up" of chests might be a reference to the Sealed Chests in Chrono Trigger, which had a similar mechanic.