Take control of an alien hive-mind that eats bosses, takes their skills, and wears their skulls as a trophy - in this metroidvania game, you can slaughter your enemies and gain access to their skills by donning their skulls. These skills help you defeat your opponents while also enabling you to travel the world in novel and fascinating ways. As you discover its secrets and employ them to your advantage, use the entire surface of the alien planet as your playground. Use Zapling's sticky tentacles to your advantage to easily jump and climb all over the place. Discover game-changing mutations that alter and improve your skills, and gather skull fragments that shed light on long-dead civilizations. Trade plasma for old locks, lost knowledge, and strange artwork. With nothing but your skulls for company, explore six large and linked worlds. Identify every biome on Earth by gathering the skulls of those who have lived there.