Sewer Shark -- Sega CD ====================== Automatically shoot Hydrogen Flare- To use this, you must have a controller with autofire capabilities. All you have to do is put the C button on autofire, so whenever the hydrogen levels get in the red, it automatically fires, and you don't have to worry about it. Keep power up- If you want to have a lot of energy, don't keep shooting, instead, when you see an enemy shoot it with just one or two rounds. Recharge Stations- When you come to a recharge station, an easy way to tell which way to go is this: At the top, in the middle of the two, are two lights, one red, one green. Go to the one with the green light. (Green means go).