So..does Fez qualify as 2.5D?

archestereo

I got, like, I guess at the end of April when it was released on Steam, and I’ve been loving it; however, the nature of the game has got me to thinking:
 
Obviously, it makes use of classic 2D platforming, complete with pixel art; on the other hand, the environments are clearly 3D, which legitimately affects the gameplay. So, is it a 2D platformer like the classic NES games, a 2.5D platformer like Pandemonium or Klonoa, or a genre bender?
Interested in advertising on Derpibooru? Click here for information!
KilianKuro Commissions!

Help fund the $15 daily operational cost of Derpibooru - support us financially!

Syntax quick reference: **bold** *italic* ||hide text|| `code` __underline__ ~~strike~~ ^sup^ %sub%

Detailed syntax guide