Mr Shoe should implement some sort of moving block, when it hits the edge of the world, it should teleport to the other side of the world and continue on its path. Or simply one that reverses direction when it hits a block.
I love this game, amazingly fun and an awesome tool of procrastination, but it definitely needs features and updates, the things that lag and some of the more difficult things are quite annoying.
Last time I played this I went about six or seven bubbles down and found the final boss. (I assume the huge tank with the four guns that practically surrounds the entire bubble field is the final boss)
The music isn't repetitive, Your mind is thinking about the exact lyrics reptitivly.