Also, I don't see a reason to not include controllers as an option. Using hand tracking is certainly fun, but for those who prefer better tracking quality, controllers are still better. I'm aware that you finished this game in 3 days, so implementing two types of input might be taking too much time.
Viewing post in Your Hand Is A Duck (VR) jam comments
Thanks for the feedback. Yeah, it would have definitely tracked more reliably using a controller, and you wouldn't have needed to remember the hand gestures. But for this jam, my personal goal was to play around with the new XR Hands Unity package. For a post-jam version, I'd definitely add controllers, or do more where hand tracking adds more gameplay value.
For the jam, I was originally thinking of having the player swing their index finger and pinky finger to make the duck waddle. But I found that detailed hand tracking on the Quest 2 is so unreliable currently, especially when one finger obscures the other, or when the hand isn't at optimal angles, or when lighting is not good even. I wonder how good the hand tracking will be with Apple Vision Pro or Quest 3.