I have a 4:3 CRT, so I decided to play on that since you went through the effort of making it work well. I had no issues and it looked great. I played a match for all 3 prebuilt types. Although fun at first, it quickly grew stale once I realized it was just circle strafe around eachother until someone dies. I will note I haven't played any mech games besides this, but I'm sure there is things you can take note of from those games to add more variety so it isn't like that(also aided if it isn't a 1v1). The overheat mechanic was decent, might be interesting if overheat is affected by the location; for example it's quicker in the dessert and slower in the snow, might add some strategy if you can customize your mech for a campaign or what have you. Maybe add special fire ammo that overheats the enemy into submission? Anyways, I also checked out the build-a-mech menu, but it just seemed a bit much so I refrained from making something beyond swapping a part or two from the ORION class.
Overall pretty fun for what it is as a WIP.