It’s described as a 2D/3D shooter, and the screen shots reminded me of Sin & Punishment. I watched the trailer video though and it’s way more like a version of Space Harrier or Rainbow Cotton except that you’re stuck to the ground for the most part. Your character appears to be a 2D sprite pasted into a 3D scene, with two-frame animations for running, jumping, and shooting.

We need a new Sin & Punishment :(