Hey there. The game's presentation is wonderful, but it's hard to tell what the keyboard defaults are. They're not listed on this screen, or the game's Input one. It's also hard to decipher them while playing. Sometimes WASD works, and other times it doesn't.
In a sense, the game would actually be more controller-friendly if it simply had keyboard defaults, and had nothing to say about controllers. In this case, I can understand why you wouldn't have keyboard defaults for all 4 players, but, for at least 2 players, I think that would be helpful.