I'd be careful about binding keys to anywhere on the numpad, not all keyboards (mine included) have one.
All in all, considering you joined halfway through the jam, this came out quite well! It's damn hard and I'm very thankful for the lenient hitboxes, but I can come out of it saying that I have beaten the greatest enemy. The bullet hell genre usually requires a far smaller player sprite than what's here but to be honest it works with the patterns you've given. It's definitely basic overall, but there's enough flair (the game has a good sense of humor) (I love the chairs) that it works and I was happy to see it through to the end. Good job!