I finally beat the game. I love mysteries and this one is intriguing, complicated and worth the replays. The 8 bit art is timeless. The game mechanic of switching characters to uncover clues makes it interesting and more complex than the typical one person whodunit.
As mentioned, there are several bugs if you do not follow the right path. The worst is the black-out that happens if you decide to turn back at one point. For that, I subtracted a half-star. Dev, please fix this. It's an otherwise perfect game.
Spoilers:
To get to the final ending:
As Cricket talk to Ted
Ted to Pooper
Cricket to Ted
Iblis to Randy
Iblis to Sarah
Sarah to Iblis
Iblis to Morgan
Iblis to Lucille
Iblis to Rose
Rose to Morgan
Rose to Randy
Rose to Cricket
Cricket to Randy
Cricket investigate Randy's room
Cricket to Randy
Cricket to Lucille
Cricket investigate Morgan's room
Cricket to Morgan
(ending 1)
Lucille to Cricket
Lucille to Ted
Lucille to Orval
Lucille to Rose
Lucille to Randy
Lucille to Morgan
Lucille investigate Lucille's room
(ending 2)
Morgan to Randy
(ending 3)
Sarah to Iblis
Iblis to Lucille
Lucille to Morgan
(ending 4)
Investigate Owner's room
Enter secret passage
Unlock Door
Enter secret room
Investigate secret room
Watch the dialogue and be thorough, as some questions need to be answered before proceeding to the next person. But, that order above should get you to the final ending. Please correct, if needed.