Ultraman Core

There's a new online adventure coming. One where you can create your own giant robot. It's called "RoboTitan Incorporated". A game where you can design, build, and fight monsters, and other giant robots. Then, you have our main protagonist, Hiro. Then, as soon as he logs into RoboTitan Incorporated, he gets a giant robot named "Buddy". Then when Hiro and Buddy are surrounded by a Kaiju named "Shellanga", help arrives in the form of a giant of light named "Ultraman Core".

Ultraman Core gives him the Core Crosser, along with 3 Core Armors, so whenever he, or Buddy, is in danger, he summons the power of Ultraman Core to fight against the Kaiju.