hi uhh... ʰᵒʷ ᵈᵒ ᶦ ˢᵃʸ ᵗʰᶦˢ

I looked at the code and... it looks a lot like my buddy Czarlo's "Picocraft 2D" cart, so I believe you should give credit. It's just a nice thing to do when you reuse code. Other than that, though, it seems pretty neat!