I speculate that the teasers were made around early development of the game. And thus, the normal mapping would be added later on. Also thank you @Marxfan2008 
for even teaching me what Normal Mapping is!
3 months ago
Back with an update, I'm now looking back at the 3 teasers that got found yesterday, and the marxs appear that they don't have any normal mapping on their shoes and bowtie. Marx in the 1st teaser does not appear to have any mapping on his hat at all.
Next up
We finally have it.....
UPDATE: ANOTHER RECOVERED SCREENSHOT HAS BEEN FOUDN!
The original models for YOF have been found and thus will be in the YOF Model Archive Folder!
Happy 50,000 Followers!!! 
Another Huge Update!
candy the cat pixel art!
YOF Search Update 1
2 screenshots have recently been recovered by 2 users who screenshotted the game during its short lifespan
One Night Of Marx's: Years Of Fun has finally been found!
This week's Fan Art Friday celebrates Five Nights at Freddy's! Accept the quest in your quest log to get started.
Oh hey! Looks like I have been invited to help out with the search for YOF!
0 comments