Scramble is an old school arcade favorite and is the grandaddy of all side-scrolling shooters. You'll make your way over mountains and through caves as you blast enemies and keep an eye out for the ever-important fuel tanks. You'll fire missiles at airborne enemies and drop bombs on others. The bombs are a little hard to aim, which is bad news because you'll need them for those hard-to-reach fuel tanks. Collision detection can be a little wonky at times, but overall this is a nice port of the arcade classic. It has high replay value, it's a nice challenge (I never made it even close to the final boss) and it keeps the spirit of the original. What more could you want?