Thanks, I'm glad you enjoyed it!
On the note of the jam theme, my interpretation was that you're "exploring" different levels, since there are some levels with more than 1 goal. So you can play through the game, then replay some levels to find goals you didn't take and play through new levels.
Another way I looked at it was that with the growing/shrinking mechanic, you can explore different parts of the level that require you to be that size. Hopefully that makes sense, I probably should've mentioned it explicitly in the description or somewhere else.