Just beat spamtom neo (finally) and i just realized something.

I went to the wiki to see what the deal was with this shadow crystal thing and it said that I could've gotten another one earlier by defeating Jevil. I did not know that. I had managed to get the key and 'free' jevil in chapter one but because he was so hard and I couldn't stop dying I gave up. And now the world he was in is gone. Does that mean I'll never get his shadow crystal? Shit