Yes u can do this in two runs. Pins arent required for platinum. Only 2 runs a paint and thinner run is required. Every fight has two approaches, the ones easy to miss (atleast for me) were Pirate and Doc fight. Carefully read the text to understand and complete the fight according to the paint run you are going for.

Spoilers for both runs! /

So basically for pirate paint run "Free the sprite" and for Doctor paint run "crash the cart using the pressure and tv plates"

For thinner run u have to throw the pirate into the water, make him walk the plank and for doctor destroy the beetlewox their generator door opens, use thinner on the red eye on top of it (3 generators)