Hmm. This sounds like it will be hard for a newcomer like myself.
Anyway, I tried to implement the score in the game but I just couldn't do it. It seems like the only way the sub will appear is if I cleanse everything after the title screen, and that would include the score. Any attempts to include the score afterwards was a failure. So I guess it won't have a score. At the very least I want to include a life counter and level number.
I made the sub appear though, and it is movable. It can't stop once it's moved, though, and I would like it that way. The only way it should stop in the game is if it touches the coral or the chest.

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