This portion of the Luigi’s Mansion 3 guide includes the Castle MacFrights walkthrough complete with each puzzle solution, castle macfrights gem locations, and how to beat knight macfright. Notable puzzles include how to cross the spikes, how to burn the web next to the dragon, how to use the wooden elevator and get into the cages, how to cross the wooden bridge, and how to get past the crossbowers with the carts.
You’ll also find some tips and tricks for dealing with knight macfright so you can get the next elevator button.
Below are the walkthrough sections and objectives. Please note we may have added a few objectives ourselves to indicate the steps you need to take to complete the main objective. Objectives that don’t directly appear on your menu are italicized.
Source: IGN.com Luigi's Mansion 3 Guide: Castle MacFrights Walkthrough