Fixed some visual bugs & other minor tweaks

Patch notes

• Fixed waterfall tile visual bug

• Fixed issue of backgrounds tilemaps being improperly aligned

• Made a particularly annoying to find destructible tile take 1 less hit to break

• Tweaked the force on some bouncy mushrooms for smoother traversal

• Bee moves to cursor slightly faster

• Tidied exit button text

• Ball continues to roll a little more after bouncing

In future, if I add new secrets into the game I will add a patch note like this:

• Secret/s: insert mysteriously ominous line here

I don't expect to do this often (especially not post-release) but there may be some additions for pre-release community puzzles (see latest announcement). Nothing just yet.