Thank you for the feedback! We're very happy with the art style and environmental effects; Anna's done an amazing job. :)
We definitely will be tweaking the levels to make things a little more intuitive with regard to "where to go next." A mini-map feature is also in the plans to ease in-level navigation.
When it comes to room transitions specifically, we have some more finished rooms earlier on in the game that utilize a bounded camera system, which does not show the brown blocks and such, but rather shows a dark gradient to indicate how to go forward. We intend to bring this to all of our rooms, along with further polish to those rooms and more consistent environmental transitions between rooms.
Controls are also something we definitely want to work on. Things like Y for force field and X/click to slash kind of work as in-development solutions, but we definitely plan on tuning our UX (and perhaps allowing control rebinding) in the future. Also, thanks for the note about the gamepad controller; I thought controller support was already implemented, but we will definitely be looking into that.
Thanks for playing!