I choose to think of my guy as a Banpresto Original I guess. One of the alright ones. Definitely didn't think up a whole show behind him and he doesn't have a whole lot of backstory or some hidden great purpose, what little there is happens to be directly linked to the current situation or just his particular unit as an excuse for him being in the game and he starts out as having already accomplished his lifelong dream and then some. He's just that one dude who pilots one of the few Banpresto OG mechs that isn't an overdesigned mess of spikes and you keep him around because he's entertaining rather than because he's a game breaker or the game force-deploys him 90% of the stages as part of the plot.