First off thank you for taking the time to give our game a try. Also thank you for the advice, the jump key is something we must of overlooked but we can easily add both forms of control for that and the combat and the height change jump is actually in place was just unfortunately too late to make the gamejam cut. I like the idea to add a reaction to being hit, always happy to add more animation to the game and now we have more time I will get working on that. The sprite direction was originally set to the direction you were walking but we decided to swap it because we liked the idea of stepping back from enemies while shooting and facing them.
Stay tuned for more content and updates!