I really like Sonic, however, since they are getting Nintendo, I feel like a Nintendo Hotel would have been better than Sonic, since it would requiere making a whole deal just for it, nevertheless it sounds like a fun hotel that would be ideal for a family vacation so props for that!Sonic's Green Hill Zone Resort
Spinballing into Universal Resort Orlando is Sonic's Green Hill Zone Resort, obviously based on Sonic the Hedgehog, bringing to life the palm trees, looping hills, and colourful sights and sounds of the 1991 video game's opening zone to life, based entirely around a large oasis (i.e. a giant swimming pool), with the hotel having two major restaurants, gyms, huge Sega arcades, etc..
The hotel is thematically split in two, both sides having six floors each; Sonic's side is more naturalistic and beachy, with huge palm trees, the Green Hill Zone's unique loops and hills making up the buildings, with numerous hotel rooms designed after Sonic and friends, so Sonic's rooms are rather laidback and beachy, Tails' have a sky theme and resemble a workshop or a plane hangar, Knuckles the Echidna's have a jungle, tribal, Aztec design, Amy Rose's are more urban and homely with an emphasis on the colour pink and her devotion to Sonic, Big the Cat's rooms are simplistic in design and made from the forest (lots of wood), and Shadow the Hedgehog's is both futuristic and militaristic at the same time.
The other hand of the resort was designed by Dr. Robotnik, who is an evil genius, but also has a flair for design, using sleek metallic colours of silver, grey, red, black, and yellow, with each room mostly dedicated to his own brilliance, but also his many robotic creations.
Bonus - The Muppets' Happiness Hotel - While perhaps not as rundown as its movie counterpart, the Muppets' Happiness Hotel is small and cozy, and sporting the classic brand of Muppet humour, like a crashed motorbike hanging out of the ceiling, the kitchen is run by rats, Miss Piggy has the best suite in the hotel (of course), and there are nightly performances from the Electric Mayhem.
Bonus: A Muppets Hotel is the best idea!