Gotta echo some of the others here. I really really wanted to like this.
I mean, it's all there. The game looks incredible, the mech design is awesome, the UI's good, the music is great, and it's all animated really well.
To do all of this yourself in just two weeks is mind-boggling, the rooms are even randomised!
But the gameplay itself is just really frustrating. It took me awhile to figure out the combat system, but even once I did, I was still struggling. There's just so much going on, I'd parry the incoming shots and time my attacks perfectly, but miss because I wasn't at the exact perfect range I needed to be at. Sometimes I'd manage to chase the enemies down and keep track of them as they circled around me, but couldn't then also get the timing for the attacks right, meaning I was just awkwardly staring at them.
I never even got to the part of using the specials, I think my brain would have exploded if I had to factor in another system.
In my opinion, the rhythm mechanics are holding the game back. If you want to keep full 3d movement, I'd drop the rhythm mechanics and just turn this into a character action game. Make the parry timing based on "tells" from the enemies and allow the player to attack whenever they want. You can then give the enemies more movement options, so the challenge becomes blocking their attacks while chasing them down. Just gives the player one less thing to worry about.
Still, I really hope to see more of this, as I think this is a great start to what could be a great game. Well done!