Sky Base

Sky Base is a space shooter similar to Galaxian where you control a Rocket launched from earth into space and have to go through four phases to move on to the next round. You warp through a black hole shooting at Aliens (50 points) and UFOs (100 points) for some time, next out you are immediately showered by Meteorites (200 points) that swarm down at you and must be shot at or avoid it at all costs, then eggs appear to hatch into Monster birds (300 points), hit the red weak point to make them fall and avoid colliding with them, and finally you have made it to a mysterious dark land launching missile attacks (150 points) green, purple, blue, and yellow ones move side and side, while the orange ones are launched out of the Cannon (400 points) to explode into three shots. Hitting the core two times results in 500 x mystery points depending on the nine missiles you shot down and after that the game loops, but the difficulty is increased. If you get shot by any of the enemies, you lose a rocket while reaching 10000 points you get an extra. Can you survive as long as possible before getting a game over with all your rockets gone?