I am bad at these kind of games so capped out at 2min playtime phase 3 as my best attempt.. but it was a lot of fun and only had minor issues with the controls (rotating with QE while using WASD basically made me rotate a lot less than I should have, I guess this might be a non-issue on controller). 

Ending UI screen was really cool! As was the SFX in general, especially on dashing near enemies.

Some CC is you could make the outer skybox be something nicer to match the polish of the rest of the game, and maybe have some sort of Pulse thing go across the arena/ change the texture of the arena on progressing stages.

But nice work! Maybe make the capsule something more cinematic from your game as it doesn't look very good IMHO, the quality of your game is far superior than what I would expect from the capsule :)