Kamen Rider Heisei Generations FINAL: Build & Ex-Aid with Legend Riders

A brilliant scientist-hero who pilots the Build Driver with Doctor and Game Fullbottles. He drives the cross-dimension charge to stop the Bugsters and prevent Enigma from unraveling reality. He anchors the team with decisive leadership and quick improvisation under pressure.

A gamer-hero who wields Ex-Aid powers and teams with Build to combat the Bugster outbreak. He navigates the dimensional crisis while preserving the core values of friendship and justice across two universes. His tech and gaming instincts prove crucial in unlocking cross-dimension solutions.

A vigilant Rider who steps into the crisis to prevent the worlds from destruction. He uses Ghost abilities to confront Nebula Bugsters and acts as a bridge between dimensions, supporting others when their powers falter.

A mysterious figure whose actions influence the cross-dimensional crisis. His presence hints at deeper schemes behind Enigma and the convergence, challenging the Riders to adapt quickly. He embodies the elusive, unpredictable edge of the threat.

A young ally who supports Sento and Sawa, offering crucial knowledge about Enigma. She becomes a link between the human side of the crisis and the science driving its-machinations. Her involvement helps guide the Riders toward solutions.

A researcher connected to Enigma whose work reveals the mechanisms behind dimensional manipulation. His discoveries drive the plot's revelations about how to counter Enigma and the Nebula Bugsters. His actions are pivotal in understanding how to separate the converging worlds.

A breakthrough researcher who develops the Kaiser system and uses Nebula Gas to power his machine. He embodies the dangers of unchecked power, orchestrating a plan to fuse dimensions for control. His antagonistic drive pushes the Riders to act decisively to stop Enigma.

A partner in the Ex-Aid universe who becomes stranded in the cross-dimensional crisis. He fights alongside the team and brings the Ex-Aid perspective to the battle, reinforcing the theme of cooperation across different Riders.

A key scientist figure who identifies the culprit as Kaisei Mogami and connects Enigma to a broader conspiracy. He supports the Riders by sharing critical information to stop the looming convergence.

A stabilizing ally who aids the Riders by facilitating communications and strategic planning. He represents grounded leadership during chaotic, high-stakes battles across dimensions.