This game looks and sounds fantastic! However, mapping controls to Z and X while binding movement to WASD is super awkward to play, often requiring players to remove fingers from movement to do other actions. When that action is fire, an action that wants to be held down, it becomes almost unplayable. Using another hand doesn't help either because it just gets in the way and feels uncomfortable. Using thumb keys like space and pinky keys like R Shift or R Ctrl are much more natural for controls. Or even mouse inputs!
Sorry for the rant. I feel really strongly about this because the game plays so well otherwise! It's colorful, snappy, energetic! I love it. But the controls really soured the whole experience for me. Great game though and quite an achievement in 48 hours. Don't let my negatives get you down. This is wonderful.