Interesting idea! I wish it was harder though. I feel like the risk/reward balance is a little broken here :D you can basically spam your ping. Waiting for the perfect moment might even be riskier since you don't know where new enemies could be.

Great and original concept! There isn't much to the game right now, but I did have fun trying to get a high score (I especially enjoyed trying to get two ships to hit each other). I think this base idea has a lot of potential and would be very interested in seeing it expanded upon.

Probably my biggest suggestion would be to make the game harder over time (maybe you already do this, but I couldn't feel it). Right now, it feels like once you've got the hang of it, you can pretty much go indefinitely, which did make it start to feel boring when I got to around 3000 points. Even if you did something simple like add more and more ships and have ships start firing at you even when you're not using sonar, I think it would give the game a lot more replay value.

I also encountered a bug where ships could sometimes suicide with their own bullets, which often happened at the edge of the screen, but it wasn't a big deal.

Overall, nice work!

Fun game! With a little more polish this game could be a great mobile game! It's simple and fun and the sound effects are good too! Good job!

A quick fun play!  I did want to keep playing because there was just enough tease with each time that I knew I could have done a little better.  The sound didn't always work for me.

It's a great base concept. If you were going to expand on the idea, maybe have variables that effect the length  that you have visibility, and maybe slow down the torpedos just a tad. I can see this type of idea also go into a horror action type game.

Nice concept, controls felt tight/responsive, never felt cheated or like the death wasn't my fault. Some sound bugs and issues with the enemy subs shooting themselves (sub 1 shoots sub 1, not sub 1 shoots sub 2, I get that that's the point of the game). All in all, well done, and pretty fun!

Also, I got 2,700. Am I the champion?