Played and rated your game. It's really fun. I collected all the batteries and really enjoyed the core gameplay of it, which is the puzzle of each stage. Being that this was your first game jam, you did a great job dude. This was my first game jam as well and it was stressful for me haha I now know to start much earlier and just think about the core gameplay before building anything.
Any who, here is my game jam entry: https://itch.io/jam/gmtk-2019/rate/463584
It's a simple endless top down shooter. Since I was short on time, unfortunately I was not able to add a win state and little improvements here and there. Please let me know what you think about it!
Great job on your game!