Hi, so i exist. pretty cool, right? okay no. This won't have any info. so uhh.. 

Jermbo appears in the Turret floor in the distance.
If MR is in the elevator, he will move towards it and explode it on contact, killing it. He will then go back to his usual position.
Jermbo is one out of three known NPCs capable of killing MR, with the others being DrRETRO and Mach.
A poster of Jermbo without eyes appears in the Glorp N' Go floor.
Jermbo is not affected by the Spray Bottle.
Jermbo has a chance to appear in the Skyblock floor after opening the chest.
Jermbo will appear in the Jeremy's Domain floor if the princess resets before the floor ends.
Jermbo's picture originates from a Twitter/X post where the Japanese user "takeru0321neko" posted a picture of their cat Takeru, staring at the camera. [1]
An edited version of this image was also used in a meme called "Alien Cat", which the cat lacks ears and has his eyes widened.
There is a very thin black line that appears over Jermbo while he is in the elevator.
If the elevator is full, Jermbo will explode two random NPCs that are in the elevator.
Jermbo bowling pins can be seen in multiple different floors, such as FNARB, Shop Space, and Button Competition.
One of them is named Buck, who is an NPC located in the Button Competition floor and the Shop Space floor as an item for free and 100 coins respectively.
Jermbo has a chance to appear as a jumpscare when using the Ifone.
Jermbo will leave the elevator on the Cardboard Mansion floor and will say "I'm leaving!".
He will not leave the elevator if another NPC left on the same floor.
Due to Jermbo being an image, he doesn't cast a shadow.
Jermbo has a chance to appear in the Other Elevator floor, replacing Bread_Angle.
Jermbo is the NPC that appears in the most floors, that being 6.
A close second is Mach at 4 floors.
However, if not counting elevator NPCs, she is also the one that appears in the most floors.