Rockman commercials

Rockman Zero commercials are a series of commercials that, as implied by the name, aired only in Japan. They featured animated segments before cutting to the gameplay proper.

Mega Man Zero
Neo Arcadian forces, with Maha Ganeshariff being in close proximity and presumably in command of the unit, are congregated near a monument and about to open fire on the monument. A restrained Ciel attempts to run over to the monument and eventually falls over as a giant hand grabs her. Part of the monument falls away showing Zero closing his eyes, only for him to suddenly open them and cause the monument to explode, annihilating the Neo Arcadian forces in the process. He then levitates over the blazing inferno holding an unconscious Ciel while a voice over mentions he has been awoken and asks what he ought to do. It then cuts to gameplay snippits, including Zero's fight with Sage Harpuia, before showing Zero among blazing wreckage.

Mega Man Zero 2
Panter Flauclaws (who is noticeably much larger in the commercial than in the game) proceeds to slam Zero into a wall and pinned him via one of his claws. As Zero struggles to free himself, it then shows Ciel bracing herself alongside the other members of the resistance as a targeting reticule (implied to come from Panter's HUD) aims directly at her face, with Panter proceeding to unveil an energy cannon from his mouth. Suddenly, Zero starts shifting colors before assuming his Energy form and knocks Panter away. He then jumps up and unveils his Chain Rod as Ciel watches in awe. It then cuts to gameplay segments, including the actual in-game battle with Panter, before showing two to eight multiple-colored Zeros (foreshadowing the Form Change mechanic).

Mega Man Zero 2
Zero, in a flowery environment, is significantly damaged to such an extent that he has to lean on his Z-saber while struggling to stand as Ciel watches with noticeable concern in the background. It then shifts to a giant robot (presumably Tretista Kelverian due to comments by the creator of the ads, but he has a significantly different design) collapsing with such force that it causes a dust cloud to envelop the area. It then shows gameplay clips, before cutting to a panting Zero looking at the camera while showing the title.

Mega Man Zero 4
It shows a conglomeration of gameplay clips before showing a white sketch of Zero turning around in a pose mirroring his pose for the game, only to calmly close his eyes and fade away as Japanese text comes up translating to "Everything goes to Zero."

Trivia

 * Panter Flauclaws coming after Maha Ganeshariff acted as a subtle Japanese pun due to the terms for Claws and Elephant sounding similar.