This is awesome! Reminds me of the Deep Scan Mini game for getting extra credits in Die Hard Arcade for Sega Saturn. Really nice presentation and fun too!

The only issue I had was that sometimes the mines that the subs released were really dark and hard to see in the dark water. Granted, I was playing on and older LCD TV and the colors don't pop nearly as well as newer TVs so I didn't knock any points off.

Flawless.

Pretty neat.