Even when a shroom dies, it has another life! These shrooms never actually die! They can take on the form of undead beings or spirits. It all depends on how they lived their life.
Zombie Shroom
This shroom afterlife form is given when the shroom has a lot to live for and really wanted to stay in Romoshum. When they die, they just become this zombie shroom and live another life, only they rot slowly. They are perfectly nice shrooms, they don't try to attack others, even though they are zombies. They may get to live on land for another 50 years, but then they will die forever.
Demon Shroom
Shrooms can become a demon and tempt other shrooms into being bad, which makes them into demons because they want more followers. But true shrooms won't give into this temptation because they seek having a better, happier afterlife.
Angel Shroom
Shrooms can become angel shrooms when they have a tough life but never give into the temptation of demon shrooms. These shrooms can watch over other shrooms to lead them away from becoming a demon shroom.
Ghost Shroom
The ghost shrooms are shrooms that only wanted to have a lot of fun but were never really bad or good. These shrooms like to scare other shrooms and play tricks on them all the time. They are friendly and visible to other shrooms, but they can be a bit annoying.
The shrooms will completely rebirth into one of these forms. If a flat shroom died and became a demon shroom, it wouldn't look like this...