I feel cheated, but better late than never. My Godot game is now released with 5 minutes left on the clock! (I admit I used most of the submission hour finishing it up...)

While I'm sure technically this isn't the greatest thing ever, and it really isn't, since there are some bugs and corners cut here and there, I'm really impressed with myself. I honestly didn't think I'd complete a game in three days, considering I never had prior experience with Godot (I literally chose it because it was the first hit to "engine that exports to html5..."). Please excuse the lack of music and sound effects, as this had to go once the time got short.
I wanted to implement more features like extra levels, coin chest spawn points, etc. but what's here is complete. This is a game inspired by 80's arcade games in which you must protect your underwater treasure from cave divers, while not being able to attack the divers yourself.
The game is a bit easy right now since I spent so much time on the code behind the game, I forgot to design an actual good level, but it would be dishonest of me to sneakily update it, so it is what it was on submission hour. Hopefully it's still somewhat enjoyable.
https://ldjam.com/events/ludum-dare/48/$241700

I hope you have as much fun with it as I had playing it, and feedback is not only welcome, but highly desired, I really could use some pointers, technical or design wise.