There should be a scream sound effect when the ghosts get you. Alternately, you should have a heartbeat sound going throughout the game, that gets faster the closer ghosts get to you.
Found a bug...when I went into the second underwater cave (where you first grow the stalactites/stalagmites, I tried to climb from the big stalagmite over to the big stalactite growing down, rather than wait for the second stalagmite to join up with it. I ended up dropping down between the first and second stalagmite; on screen it shows me in the climbing animation, but it's repeatedly playing the "hit the ground" noise, and I'm unable to get off the stalagmites, either by climbing to the left/right or by climbing all the way down the the ground. With that said, I still think this is a great game, and will play again to avoid this glitch. :)
And my burgers got zeroed out as well! I've cooked more than 100 burgers in total according to the game, and I had more than 30 saved up when I left...I came back and my burger count is zero!
This might possibly be a bug, but if I spend a bunch of time fishing and then log out and come back, all of my different fish counts are reset to zero. I could have 200 dragonfish, but if I refresh the window or X out and come back, they'll have all disappeared.
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Thanks!