Robo-Mario

Robo-Mario is an unused boss fight from the March 5th 1996 build of Super Mario 64. It was discovered by FANDOM user DannyShellstar. The person who gave DannyShellstar the ROM said that storywise, "the robotics division of the Koopa Troop made it." It could be a creation of the Personalisation A.I.

Discovery
FANDOM user DannyShellstar was playing a ROM allegedly of a build of Super Mario 64 dated before E3 1996, given by an anonymous user on Skype. He went up to the third floor, and found an entity identical to Mario, although all the skin, the gloves and the shoes were grey.

Fight
The fight consisted of Robo-Mario trying to attack Mario with punches, kicks, and the unused triple jump spin. The only way that DannyShellstar could hit Robo-Mario was by slide-kicking.

Reportings
Everything reported here should be taken with skepticism, as these reportings are unverified.

Report #1
''I recently went back to my Super Mario 64 cartridge after years of not playing. I decided to start a new file, as I had only got 2 stars on my old file. Somehow, I managed to get 70 stars without dying. I got the 70th star in Jolly Roger Bay, as that was a star I had decided to go back to later after I picked the game up again. When I went to the third floor to go up the endless staircase, I heard footsteps that sounded like Metal Mario, but I was the only one there. I then heard what sounded like radio interference, and then, a text box appeared.''

"BZZT! This is Bowser to Koopa Troop Robotics. Mario has gotten all 70 stars, and all of them seemed too easy for him to get. Send out Robo-Mario. What? You've already sent him out? WHY? WHY DID YOU NOT LISTEN TO MY ORD- BZZT!"

''That was strange, I had never heard of a Robo-Mario outside of Mario Kart Arcade GP. To my knowledge, that was his only appearance in a game, but I was proven wrong by what I saw when I went through the door. It was another Mario, but with black eyes with red pupils, and his skin, gloves and shoes were all gray. I then saw another text box, and it read:''

"PLUMBER IN SIGHT. ENGAGING COMBAT."

''I was dumbfounded. A boss fight that I had never seen nor heard of. I had heard of stuff like the Wario Apparition, but this was entirely new. I had no idea that anything like this existed. Suddenly, I was in a boss fight. I saw a health bar I had never seen before, made up of 8 gray Mario heads. I ran up to the gray Mario, but he just punched me away, knocking away half my health. He then performed a triple jump, but he began spinning on the final jump, but I got up just in time to avoid it. While Robo-Mario's back was turned, I punched him. It did nothing, so I ran up and dived into him, but that also did nothing. I also noticed around this time, my health was regenerating, one bar every 15 seconds. Robo-Mario then dived into me, taking away 3 bars of health, but the regeneration kicked in just in time to give me back 1 bar. I was scared at this point, and decided to run into the mirror room, and when I got through the door, Robo-Mario just bust it down. A text box then appeared, saying:''

"RESISTANCE IS FUTILE. GIVE UP."

''I went into view mode, and looked Robo-Mario in the eyes, but he began running at me just before I exited view mode. I ran circles around Robo-Mario, and slidekicked into him while his back was turned. It took away one head from his healthbar. I knew I had to distract Robo-Mario and slidekick him while he was looking away. I managed to repeat the process until he had 1 head left on the healthbar, when he suddenly became more agressive. He managed to blow up another door while I was trying to run. But when he turned his back to attack a Toad, I threw a last slidekick, and defeat him. A text box appeared saying:''

"DOES... NOT... COMPUTE... I WAS DESIGNED... TO NOT BE... DEFEATED..."

''After I closed the text box, Robo-Mario exploded, and a star burst out. I grabbed it, and another text box appeared. It read:''

"[Enter text here]" and it offered me to save.

I had heard about the rumors of every copy of SM64 being personalized, but I had never seen something like this.

Encountering the Boss
The boss could only be found if 70 stars were collected without dying once. It is believed that storywise, the Koopa Troop would have sent out Robo-Mario as a way of stopping Mario, as the stars had been too easy for him to get.

Theorising
The fight is theorised to have been removed due to its high difficulty, as not everyone would know of the slide-kick's existence.

The boss may also be a response to the many Mechanized versions of Sonic the Hedgehog that were made over the years, such as Metal Sonic.