Nebulus
You play a little green guy who has to blow up eight towers, because their presence somehow poisons the water of planets that might be ideal colonies. Unfortunately, you'll have to get to the top of the towers to blow them up. You get to the top of the towers via walkways that go around the outside of the towers. On your way up you'll have to jump over various enemies, kick them and run away from them. You'll achieve the most vertical movement by jumping on moving ledges at the right moment. The game was considered revolutionary in its time because of its graphic technique. While the main character ran around the outside of the tower, he was fixed in the center of the screen while the tower itself rotated. This gave the game a pseudo-3D effect. The towers are connected by a journey through the sea in your trusty MK.7 submarine. The whole thing plays out like a side-scrolling collection game where you can earn bonus points.