We were a small team of active developers so we rushed the final hours before deadline with our submission https://itch.io/jam/cgj/rate/475756 Things we had wanted to do or were only half-working at that point had to be cut.
I particularly regret not being able to finish a stylized river shader, which would have given us more ways to make puzzle levels, but also bring in some needed contrasting color to the theme.
There is also a flying dog in the very first level - but that's more like a feature :P
Whats yours?