There are three types of fuel Cocoa needs to collect
Some artefacts you can find, some you'll have to work for
Cocoa can't kill enemies directly, but has a tendency to cause accidental carnage, he is very apologetic about this
Keys unlock portcullises, but you'll need the right keys...look closely.
Following the recent pandemic in this timeline, and ensuing panic buying, Parsley is in short supply, ration it
Find a way in to the castle and get to the next floor