If you interact with him without it, you won't understand what he's saying – only gibberish – and the quest won't progress. Progression: For the quest to start, you will need to equip the Spore Shroom Charm before talking to him.Classic side-scrolling action, with all the modern trimmings. Explore twisting caverns, ancient cities and deadly wastes battle tainted creatures and befriend bizarre bugs and solve ancient mysteries at the kingdoms heart.
Mister Mushroom is a mysterious entity first located in the fungal wastes and part of the mushroom 'Hivemind' This can be seen as he seems to be talking to other entities including the Hungry Knight a character for a Team Cherry game of the same title. I was looking for some Hollow Knight artworks, and I found a really interesting concept art, so I decided to make my own 3D version of Mister Mushroom based.
Mister Mushroom is an NPC in Hollow Knight. He will start appearing in various locations of the map after defeating the 3 Dreamers.