Malevolent mire! Bit creepy but bit playful as well. The end (from 3:40) builds up quite nicely.
I had to turn the volume up. It comes across as rather quiet. :] I like from 1:23-1:38. It gets louder! XD And there are more bubbles too, maybe.
Coming out of the pause at 2:17 makes it sound like a climax was hit, game-wise. Like something terrible happened at 2:00. Huh... the more I listen, the more I think this could fit into Uninvited. Yeh, maybe contains more horror than playfulness, eh?