I played this and honestly i have nothing negative to say besides some small nitpicks.
The railgun ammo is a bit too scarce. I suggest to add a secondary weapon slot, and leave the rockets to be a tertiary option with a different keybind (maybe R? makes sense...)
The menu music is a banger, and the sound design is really good... except for the rotary cannon spin up sound, i didn't really enjoy the high pitch of it.
The visuals are amazing. I like the pixel(? (voxel(?)) style environment destruction a lot. Might be my unconfirmed autism ringing, but I equally enjoy the warm and comfortable color pallette, especially the amber-light grey UI of the menu. I really like the mech design as well.
I think this is pretty cool, and i'm not even really into these type of games. Good work.