Escape from Havoc Mine

Game description
You are Pick-Axe Jack, a mine worker at Havoc Mine. A cave-in has occurred and you must escape. However, your oxygen levels are low and illegal miners are running rampant in the tunnels. Use your trusty Pick-Axe to escape!
How to play
Climb your way out of the mine and fight for survival against illegal miners. Make sure to use (press up) health stations to heal yourself and replenish your oxygen supply. Some elevators are deactivated and need power. Use the nearby generators to power them up. Use rocks to defend yourself and your pickaxe to close off enemy tunnels.