So glad you liked our game.
You are very correct that the difference in menu and game is too similar, that will be fixed later on, as well as the other points you made, took not end will enhance.
I've already made major improvements to the game to be released post jam.
There will be much more time related shenanigans including warps, time dialations and such as well as more mechanics using the water line that is used only as a visual effect now.Just had no time to implement all I wished for to the jam version since I entered only 2 days prior to jam began.