Neviutz's video: Persona 5 - Madarame s Palace Out of Bounds Skips Regent and removes Ryuji indefinitely

This one in particular is an interesting one. If you decide to skip this puzzle, Ryuji will be gone from your party for the longest time. He will be present for the Nue fight as well as the Ippon-Dattara fight but will, however, not be in your party again afterwards. There's a little bit of testing to be done still, but I suspect that Ryuji will return to your party after Mementos depths. The reason for this is that during this section, Ann and Morgana leave your party once more and return after opening the door in Madarame's house, removing the blockade in the palace. However, Ryuji doesn't actually ever "rejoin" your party until after Mementos depths, therefore, if you never bring him back during this puzzle, he won't return until then. Also, as you can see, while the laser puzzle is active, the enemies from the previous room are gone, too. If you decided to walk back into the laser puzzle room from the previous entrance you'll softlock yourself in that room.