Some of the artwork is off. It seems like characters lose weight rather than gain it between certain stages; every character has at least one of these.
Finding the meals from the experiments is a massive slog and there is no indication of what they are or hints as to what you need to select. Overall I didn't find any improvement from the ones I did find, so doing that minigame is just never worth it and might as well not exist.
There needs to be some way of quickly allocating WG points. You're getting points by the thousands in endgame and it takes several minutes to actually allocate them. You'll do better if you straight up don't and only put the points necessary to get the extra rolls for regulars.
There's a bug where sometimes buttons stop responding. Keyboard shortcuts to break into the menu and a save+load fixes it. This is on Firefox.