Hey, played this this morning and really enjoyed it. I wasn't sold on the 3D platforming at first, but as far in as I am at present I've enjoyed it pretty well.
It could do with an in-game option to adjust how sensitive the mouse-look is (or dare I suggest a dual-stick control option?) and maybe a more generous hitbox for the player hitting enemies, especially early-on. Despite my concerns about depth perception in 3D games (which I'm generally bad at) I do want to call out one nice thing: At no point did I expect a jump to be doable that turned out not to be, if anything the opposite.
I think with a little more care to address the inherent depth perception issues with the 3d (mainly in combat/laser-town) this would be even better, but it's pretty polished as-is especially for a month's work! Following to see what happens with this or other projects in your future.