This section is not intended for generic trivia - defined here. It is only a placeholder for notable information not yet placed into other sections. When a point has been inserted elsewhere in the page, remove it.
Concept art of Popokarimu envisioned a hybrid creature in the vain of U-3, this time being a bat and silkworm fused together using the Plaga. These designs were changed when it was found to be too fantastic.
The final in-game model has its weak spot, the abdomen, reflect light from the sun and glow red. This was a late addition to the game when play testers were observe fumbling their way through the first fight.