Thank you! I'm glad you liked it! All the art was done in Asperite, which is great for doing pixel art specifically (Although it costs about $20).
The music and SFX were done using a combination of FL Studio, Audacity, and ChipTone (ChipTone is a really cool, free tool on itch.io that you can use to make retro SFX https://sfbgames.itch.io/chiptone).
Thanks again!