Trespasser

Trespasser is a boss that has a 10% chance to be encountered when destroying a Breach Stone. This is seeded to a run, and will not change between runs of a seed. When Trespasser is spawned, breaches will be replaced with shortcuts. It is unaffected by Hard Mode or Looping.

Loot
Throughout the fight, Trespasser is constantly losing health, as a timer. Once its health reaches zero, either through time or killing its eyes, it is defeated and will flee back into the void, leaving several pickups. Each eye destroyed increases the quality and amount of the reward left after it flees.