Mr Needlemouse

Description
Mr. Needlemouse (or just Needlemouse) is the original Sonic the Hedgehog, who resided in the original universe that was destroyed by Infinite. His soul was reincarnated into Modern Sonic, followed by Swap Sonic, as well as all alternate versions of the two of them. He is known for being kind, caring and for worrying frequently about his guests as well as his own abilities as a host.

Spatial Manipulation
When within the domain of the House, Needlemouse has complete spatial control, he can manipulate the dimensions, qualities, size and practically anything else about the House.

Immortality
Needlemouse has been implied to be immortal, living for billions of years after the death of his universe and coming back to life after being impaled by Shikurai.

Standard Abilities
Needlemouse, as the original Sonic, has the standard abilities you would expect, super speed, enhanced strength and durability.

Super Needlemouse
Needlemouse's Super Form was shown when 'ere and Classic Metal Sonic played Mr. Needlemouse (as in, the video game.) Needlemouse went Super after a 'red dragon' rose from the remains of the 'Red Scientist's base, kidnapping Madonna and forcing Needlemouse to use the Chaos Emeralds.

The Concept Crew
Needlemouse is in a very close relationship with 'The Concept Crew', Venice, Terios and Tiara. The four of them have been in a polyamorous romantic relationship for an undisclosed amount of time, as such the four of them are extremely close and, despite the occasional fight, treasure eachother.

Madonna
Needlemouse and Madonna are very close friends, and have known eachother longer than any of the other residents from the Original Universe. Back there, people would frequently assume that they were dating, which became something of an inside joke between the two, nowadays it's considered a rarepair by the Needlemouse fandom that probably exists.

Shikurai
Needlemouse worries for Shikurai, and wishes to keep him safe from Corah. The Hard Boiled Heavies were informed that Shikurai was Needlemouse's 'trusted confidant', prompting the Heavy Magician to ask him about the Phantom Ruby. The specifics of why they were lead to believe this are currently not clear.

Trial
Needlemouse knows Trial quite well, as he was one of the first guests to be summoned to the House. Needlemouse was able to easily see through his disguise as 'Mirage' and helped him when he asked to become human.

Trivia

 * Needlemouse has blue blood.
 * Needlemouse smells like 'blue', 'blue' smells like Needlemouse.
 * Needlemouse has at least 80 hours playtime clocked in UNDERTALE.
 * Needlemouse's favourite UNDERTALE characters are Asgore, Mettaton and Asriel.
 * Needlemouse is very sensitive to having his tail pulled.
 * Needlemouse doesn't like me.