Soap Bubble

Guide the bubble through 13 challenging levels of the mine. Use the arrowkeys to steer - and go easy or you'll hit a wall. And I worked quit [sic] a bit on sound, both for atmosphere and audial clues - so crank that baby up!

You are a soap bubble leisurely playing with your friends in the sun, when all of a sudden you discover a strange hole behind a bush. The hole seems to continue deep beneath the earth and looks big enough for you to fit through. As you enter the hole, a pile of rubble falls behind you and blocks the entrance. Looks like the only way out is through...