how to pull off.
Step 1. Go to the pig city.
Step 2. Head to room 3 and enter the 2nd taxi.
Step 3. Go to the left then up to the secret go to (i think) any of the cops and this is gonna be really tight or not (idk how this happened to me) build enough speed so you can destroy the metal block and right before you or as you break the metal block turn around and i think thats how you can get you your ghost metal block.

once again i have no idea how this happened so sorry if this doesn't work.
also sorry if this guide is a bit short I wrote for like an hour and then i lost all my progress and had to simplify it so yeah bye bye.