Put simply, this game is just fun, no questions asked.
The customisation options feel meaningful in the playstyles they open up. The movement feels weighty and powerful, especially with the thrust enabled. The momentum is also captured pretty well, although it is a tad too swimmy for my tastes, like there's a too much inertia in my mech's legs (but that's just personal preference I think).
It's also got a bit of polish that was just surprising to see, mainly the presence of voice acting, an opening cutscene, but also the enemy variety and interaction with them, namely that you can shoot their individual parts off. And actual level design is here! (not just a sandbox): It's just a small thing but in the first level there's a narrow canyon you have to traverse to reach the next room, which is a fantastic way of showing off the movement system in a non-combat environment.
I ran into a few issues where the level geometry would just bug out and I'd go out of bounds and/or through walls, and the UI could use a bit more contrast imo, but it's all within the error margin of a gamejam.
Overall, I had a blast playing, congrats to the dev team :3