The Collector

The Collector is an NPC in Dead Cells. He invites the player to give him cells and blueprints in return for experimental items and more power. Purchases from the Collector carry over through each run.

Upgrades
There are four types of upgrades: general improvements, Mutations, Weapons, and Skills. In addition to equipment, the player can also find blueprints for outfits, which will change their appearance. They can all be found at the Tailor.

Health Flask I must be unlocked before anything else.