Thank you for your response. Yeah it always takes me a while to get that extra life. The trick is to make your first bounce on the pearl as high as possible :) I think I will lower the extra life down a tile after the competition, though. Congrats on finding those first 3 parts and yes, you are right, the 4th part is past the docks (in the lab). That's a great suggestion about enemy health drops/pickups, I will definitely be adding those! Lastly, if you do get stuck when playing through again, check these maps out:
https://drive.google.com/drive/folders/1hmY036DclxEtlS91hxC1oBJ5aedd5qq0?usp=sha...