ABYSSAL - DEEP SEA OBSTACLES

Abyssal is game for one player where you steer a submarine through a maze of obstacles.

Abyssal is played using just one button, the left button of your mouse.
You can only navigate your submarine up and down. To get the submarine up
you need to hold the mouse button, to get the submarine down you have to
release the button.

By default the submarine will just fall and crash if you don't touch anything, so
basically during the game you have the press and release the button the way that fits
the runway.

The goal of the game is to get the submarine through the runway as far as you can
without touching anything.

You cannot touch the upper wall or the ground or you'll be crashed, and there are also
obstacles along the way that you must avoid.

This game is tough, there are no lifes, no second changes, the second your submarine
touches anything it will crash and you will have to start the game all over, with zero
score.