Corpse Party is the next victim of Nintendo's content policies
A bundle of the four Corpse Party games was announced for Switch back in August. Preorders were exclusively opened through Amazon. However, last month, the preorder page mysteriously disappeared, now showing a typical "this page doesn't exist" error:
https://archive.ph/nKxLN
Furthermore, there is still no page for the games on the eShops despite (according to Amazon) targeting a release at the end of October.
Today, XSEED just released a statement and it pretty much confirmed that Nintendo banned the Western release:
https://archive.ph/6svrZ
For reference, the original Corpse Party and Blood Drive both saw Western releases on the 3DS and Switch. On top of that, it should be noted that all recent versions of the "original" Corpse Party, are based on the censored PSP remake.
You see, there are two remakes of Corpse Party. The first remake is the 2008 PC release, referred to as "BloodCovered". It is a reboot made by the original developers and incorporates elements from the discontinued mobile game NewChapter. In 2010, Mages developed a second remake for the PSP called "Blood Covered:
Repeated Fear". It's this second remake that all later versions are based upon. However, compared with the earlier PC versions, Mages actually censored the PSP version in order to make the game compliant with CERO ratings.
And keep in mind that CERO is much more restrictive with content than the ESRB. Where BloodCovered was graphic with it's content (Although pixelated), Mages outright refused to depict the more graphic content in the CGs for Repeated Fear. And it's this "censored" version, that was
ALSO the basis for the prior 3DS and Switch release, that would be included in the Tetralogy pack.