Edit: Finally figured out how to reproduce the Zelda 2 Dragon Head sine wave formula after wasting over an hour through stupid trial & error.
3 * sin(t * 3);
Then I set it's speed to 1.75 & set it's HARM_TYPE to SWORD.
Now the SMW Eerie functions as a Zelda 2 Dragon Head or Castlevania Medusa Head. No thanks to anyone else though
