Definitely a few things we ended up having to scrap that would have been great to add. We made a puzzle platformer about changing the scale of objects (https://raptorspank.itch.io/sigea-ascent) and along the way we ran out of time for several features. First, we wanted to have objects that you couldn't scale at first but as you made it through the level, we were going to let you increase your power and therefore also let you scale larger objects. We got the feature working so far as making objects that could only be scaled after reaching a certain minimum amount of power but we never had time to add ways to increase your power.
A couple of features that did make it, we wanted to expand on as well. We have fans that will throw you further if you scale the fan up or will push you less if you scale it down. Unfortunately the current fans only work for pushing you upwards. We wanted to add fans that would be able to push you any direction so we could add some to the outside of the building that would push you off unless you shrunk them first and other sorts of puzzles with them but we didn't have the time to re-factor the code to use vectors instead.
Of course there is also plenty of art stuff we didn't get done, like creating player animations and adding different clothing/devices to the player. We also wanted to add a town around our tower and floating islands above but we were definitely a little too optimistic with thinking about those. Overall though, we got our most important ideas in at least.