Thank you for checking it out! I'm glad you enjoyed it <3
The controls will end up having a menu with fully custom keybinds. I'm sorry it wasn't clear at first!
As for the boss, I definitely wanted it to be a tad bit difficult, even for a first boss. I was trying to get the feel of retro platformers like mega man and metroid, where its not really explained, but it feels good once you figure it out. If you have any suggestions on how I could better accomplish that, please let me know!