Are accidentals bad?
In chiptunes they mostly sound fine, which is the case here. They're just notes outside of the current scale. If you made them in FL I could find the individual ones and replace them with another note, but otherwise idk if I can pinpoint them for you.
But they aren't the end of the world. Honestly, they basically sound intentional in your track.
and my knowledge of music theory is minimal, so essentially all I know is rooted in instinct.