God Fusion Goku

God Fusion Goku is the fusion of Goku and the studio audience.

As seen in the Real 4D Movie, Goku and Vegeta fought God Broly, who forced Goku to fuse with the studio audience, or rather the people that was watching the movie.

This version was capable of fusing with people from the real world to defeat Broly (which was easily destroyed with one KameHameHa), and to do so, Goku is and was aware that he was being watched by the audience, and also fused with them.

Why he most definitely takes down Error 404:


 * He can erase him by travelling to the real world, or our world, by uninstalling the program he's manifesting in (don't think that how it'll probably go) or destroy the device Error 404's in.
 * Being able to erase code =/= being able to kill an actual being who isn't made out of code.
 * GFG has more knowledge in Martial Arts than Error 404 will ever have.
 * Being Omniscient in your world doesn't mean being Omniscient in other Universes and Worlds (He does know everything about his timeline and universe, but he most likely doesn't know about the world he'll be fighting in, or the opponent he's fighting (God Fusion Goku).

Aside from that, God Fusion Goku, or Goku without being fused, has shown more feats in the movie to go straight to the point, and say fanon undertale characters suck ass, and other than that, there are being WAY stronger than Error 404 that will take him on at any percentage no matter what.