That's a ... very weird bug! (and a typo about the controls, yikes, sorry). And about the upgrades, you're probably right, I just didn't really get a chance to balance. Edit: Found the bug, thanks!
Viewing post in The Quacken jam comments
Ahah no problem, end of jams are often hectic, that kind of typo is not rare afaik.
Well if you have a chance to develop the concept further (be it with the duck or anything else, I'd love to see that. Balancing a Jam game is not really the most important of the polish aspects.
Glad you found it and squashed it away ;)