Cool little world you've built here. I love the artstyle,
I don't have much experience with 'mechs' and 'loadouts' but your UI was pretty intuitive, even for me.
If I had to give feedback for where it could be improved, I'd say the character movement feels a bit slidy. Also I'd love to see 8 directional character animations, that would really ground the characters in the level.
I don't know if you have plans to continue on this project but I can definitely see some scope for expansion here!
PS - Kairo's metal claws? Ouch.