It's listed on the jam submission page, but I'll put it here as well:
Most sprites- backgrounds, enemies, character, tiles, and effects- taken from itch.io (Ansiumz, Papoy Core, Penusbmic, Untied Games, Dead Revolver, RPG Pixel, Frostwindz).
Other sprites by me (most projectiles, lasers, eyes, glass texture and reflection, etc). I also made the fleshball sprite.
Music by John Leon (we collaborated on this entry).
https://electropunkzero.itch.io/