In essence this is a short anime series that serves as a advert for the Gundam Breaker Mobile game (and the gunpla models that Bandai created for this series, afterall it is Bandai the master of mecha model) which is available.
The story is simple like one YouTube comment quote "A salty player turns to cheating in win the game" and the very short quest to resolving using the magic of friendship. And then you have gundams (or gunpla to be precise) flying around, blasting beams all over the screen.
Art style is your typical Sunrise quality, not wowing but satisfying enough to pursuade to consider buying a box of gunpla models level stuff.
An overall alright short series that won't cost you more than half of an episode of time, particularly good when you are waiting for your instant cup noodle to be ready.