The intro story is fun and character art well done.
I couldn't really get a feel for the combat. I can transform and shoot, but otherwise it feels sort of stuck to the background. I stumbled onto some enemies at one point, but I couldn't turn to face them.
I see now there's a note that Controller is required. Knowing that, the controls do work a lot better, and flipping to mech mode to dodge bullets feels cool. It's still tricky to feel how the player is moving, so some background or space dust moving would help. Also a map or arrows to point to where the robots are would help.