I have always liked this game with it's space setting and dark and calm mood. This game is chock full of gaming goodness and is very enjoyable.
Like I said above, the game has one of the best settings and atmospheres that really add to the gameplay. You basically blast from planet to planet gathering enough fuel to blast to another planet. There are also treasures that you can gather for money to buy items as well. You fly around in a small spaceship to drag the fuel to the mother ship. The same goes for treasures. There are enemies however that make it more difficult than it seems. Add to the fact that each planet has some tight spaces and different types of gravity and you have a game that will take long to master. Get boosters to help drag items faster and more effeciently. The music is great and helps the mood and setting. This game will probably take quite a long time to beat so have a pen and paper ready to jot the password down. The best part is that hidden planets can be accessed by putting all n's or another letter or phrase.
Go buy the game. It is cheap and probably full of stuff that will have you playing for a long time to come.
