Bottom of the Planet

You are a space explorer who has fallen
into a deep cave of an unknown planet.
Without access to your communicator,
you must return to your ship while dodging
the attacks of hostile creatures that inhabit the place.
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This short game was made in 4 days for the Beginners Circle Jam #3.
My first attempt on a Jam, and also my first game ever.
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Additional controls:
M = to turn on/off music
R = Reset the level