Actually, that's me on that big head, I just had no time to create the sprite for the octopus' body, so I grabbed my photo just for the laughs.
This is my first attempt ever on game development, so this one is more like a sandbox than a game itself. But i'll improve it by this week, as soon as I find time to do it.
The original idea was to have an giant octopus as the boss, and its tentacles blocks the torpedoes. I also forgot to enable the Prevent Rotation on the player, so it spins like hell if it touches the tentacle. I also need to limit the submarine's movement so it doesn't fly above the water :)