I feel you on the camera issue, I think WebGL has some problems where it'll dramatically increase the sensitivity and also cause problems with camera stutter, at least in my experience. Very annoying but such is the life of attempting to make a 3D game in a game jam lol.
This was a cool one, I always appreciate an off the wall take on the theme and this is a really fun way to take it! If I had any constructive criticism, it would be nice if the player was able to end the timer early once they feel ready to, since it would let you play a bit more fast paced. But I think this was a cool execution of a novel concept! I especially like the inclusion of multiple types of ducks worth different amounts, cool way to force people to work with weird number combinations and keep things interesting. I would have loved even more variation, but it's a game jam game so hard to complain lol. Good work!