Galaxy Rising is Geed's Ultra Fusion form which uses the powers of Ultraman Ginga, Ultraman X and Ultraman Orb using the Z Riser to enhance his Primitive form. This form debuts in Ultraman Z episode 6.
Galaxy Rising became inaccessible after Riku gave his Ultra Medals to Haruki. However, since Geed is still in possession of his Z Riser, it is possible for him to regain this form should Z give him the Medals back, as was done in Ultra Galaxy Fight: The Destined Crossroad.
When Gillvalis revived due to a Devil Splinter and attacked Planet Ain, Geed went to deal with the robot but was knocked down before he could change into Ultimate Final, with the Riser being broken in the process. Pega appears and hands Riku the Z Riser and Ultra Medals he received from Ultraman Hikari, allowing Riku to transform into Ultraman Geed Galaxy Rising and pursue Gillvalis to Earth. In his new form, Geed managed to defeat Gillvalis, who had attacked Sevenger and Windom during a STORAGE training drill. The core still survived and flew off, but Geed lost track of it. Later on, Gillvalis was lured to a factory area and transformed once more, but was imperfect due to the damage to its core.