Had the same problem as the others before me. Seems like the file MiniGames/Seven/Intro.tscn is missing even from GitHub.
What I got to play was quite challenging (the mouse precision required for that cavity minigame, holy hell!) but decently fun. The dinner preparation game took ages to load after each failure though.
Like caramelcode, I'm not comfortable judging the game in it's current state though.
Rated the game after waiting for 3 days.