The Gumberoo from Fearsome Wilderness
Bigger than a bear, smaller than an elephant, its skin is rough like a rhino but shiny in places.
The skin of a Gumberoo is said to be impenatrable and that to defeat it one must use fire which can cause the critter to explode.
More details about the game can be found at https://geektopiagames.com/fearsomewilderness
