I love how deep the upgrade system gets! Picking when to buy components, when to upgrade them and when to upgrade the ship felt like a meaningful decision that would have an impact on the outcome of each run (for the record I'm all about as many lasers with as fast a fire rate as possible)
Would have loved a slightly more zoomed out camera, or perhaps even having that as a purchasable upgrade - I tended to avoid the thrusters upgrades as I didn't want to risk travelling fast without knowing what was just offscreen.
Music is fantastic, I am so here for the lush pads and beats :)