View source for Mystery Mask

[[File:St010 o.png]]
:''A strange effect will activate when Ch.X is cleared!''
Even though the '''Mystery Mask''' is the last [[Treasure]] set in the [[Cats of the Cosmos]] Treasure menu, it is not the last the player can complete - that honor goes to the [[Neutrino]]. It reduces the 1100% strength magnifications applied to the final boss of its respective CotC chapters by up to 1000%. Enemy stats shown on this wiki are with '''completed''' Mystery Masks. Its effect is to greatly weaken the final boss of the chapter (to 100%), making it almost essential for the final fight, as otherwise the bosses' already high stats can compound with further boosts, resulting in further trouble.

==Effect==
When a player has activated a [[Cats of the Cosmos]] Chapter's Mystery Mask, the boss of [[The Big Bang (Cats of the Cosmos)|The Big Bang]] will be weakened by up to 1000% (additively). For example, [[The Cat God|Chapter 1's final boss]] has 1,399,999 health and 53,997 attack power, but the default stat magnification applied to his base stats without the Mystery Mask is +1,000% upon his initial 100% strength magnification, making him 1,100%, with a health and attack power of 15,399,989 and 593,967 respectively.

The Mystery Mask from any one chapter '''DOESN'T''' affect the final bosses in the other two chapters.

==Requirements==
{| class="article-table" border="0" cellpadding="1" cellspacing="1" style="width: 65%;"
|-
! scope="col" colspan="3" style="text-align: center;"|Mystery Mask
|-
! scope="col" |Stage
! scope="col" |Location
! scope="col" |Treasure
|-
|3-X-43
|[[Broton (Cats of the Cosmos)|Broton]]
|Transmission
|-
|3-X-45
|[[N77 Nebula (Cats of the Cosmos)|N77 Nebula]]
|3 Minutes
|-
|3-X-47
|[[Black Hole (Cats of the Cosmos)|Black Hole]]
|Spacetime
|}

==Trivia==
*The Mystery Mask's in-game description is misleading as clearing a chapter has no special effects even when it is active.
**However, due to the widespread presence of broken localization, it might have originally appeared as "A strange effect will activate '''''WHILE''''' clearing Ch.X"
* In spite of being listed 11th and last place in the Treasure Menu, the Mystery Mask is actually the 10th obtainable Cats of the Cosmos Treasure.

{{Treasures}} 
[[Category:Cats of the Cosmos Treasures]]
[[Category:Treasures]]