[quote=@Gisk]
I take it the mecha have been in development, and the pilots have been testing them and running simulations, but they haven't been revealed and haven't been tried in combat yet. Is that right? Or maybe the older one has been in service, and the new one is about to be deployed. 

Also, do you have a preference for how the mecha fight, what kind of weapons they use, or what style of mech they are? 
[/quote]

The Hyper core mecha will have fought a handful of kaiju with mixed results since mecha technology would have been fairly new at the beginning. Sometimes Hyper Man would have had to swoop in to finish the job.

But the Talos core mecha is much newer and hasn't seen combat yet.

At least that's my idea for now, I'm flexible.

As for combat preference, my initial idea (again, flexible) is that the Hyper core is initially designed for space travel, and the Hyperian's are masters at manipulating energy fields. Their ships need to designate what is 'self' and what is 'other' in order to figure out what to transport long distance when folding space. Whatever is designated as 'self' is covered in a protective field to shield it from the rigors of hyperspace travel. So I was thinking that the Hyper core covers the entire mecha in a protective field, making it good at essentially punching and kicking. But the Hyper core is very stingy at relinquishing energy for other uses. So ranged weapons for the Hyper core mecha would need to use conventional weapons (ie. things launched using their own energy/fuel, so munitions and explosives).

The Talos core then would lack this ability to coat its mech in a protective field, but is designed purely for outputting massive amounts of power instead. This makes it physically less sturdy, but able to take advantage of the latest in human-developed energy weapons, so lasers, bean swords, etc.

You would have a bruiser and DPS build, essentially.