What to Do with the Encrypted Cerebellum in Risk of Rain 2: Alloyed Collective

After defeating Solus Wing in Risk of Rain 2: Alloyed Collective, you’ll receive an Encrypted Cerebellum. This item is crucial for taking on the expansion’s true final boss. Here’s how to use it:

  1. Grab the Encrypted Cerebellum after defeating Solus Wing, then enter Solus Wing’s eye to teleport to the Computational Exchange.
  2. Inside, find Chef, who is behind a translucent, glitchy wall. Chef can combine the Encrypted Cerebellum with other items to craft new ones.
  3. To progress, you need the Exposed Cerebellum, which is created by combining the Encrypted Cerebellum with one of the following:
    • Sentry Key
    • Prison Matrix
    • Orphaned Core
    • Empathy Cores
    • Rusted Key
    • Encrusted Key
  4. Once you have the Exposed Cerebellum, offer it to the large Solus unit in the Computational Exchange. This will summon the Encrypted Teleporter, which takes you to the Neural Sanctum—a hidden realm within a hidden realm.
  5. In the Neural Sanctum, you’ll face Solus Heart, the true final boss of Alloyed Collective. The fight is challenging, visually trippy, and features an incredible arena—arguably even more intense than the Solus Wing battle.

The Encrypted Cerebellum is essential if you want to fully explore all the content in the expansion.