The poisonous mushrooms can be located in any part of the map that is completely flat. Fortunately, the mushrooms are just as easy to avoid as the wooden spike pyramids, despite being poisonous. The major feature that separates mushrooms from the other basic obstacles is the damage that you take if you touch them. These poisonous mushrooms are extremely delicate, so be extra cautious when attempting to jump over them; coming up short on your jump can mean your death even if you think you have a decent amount of health left.