Nitro Planet

Nitro Planet is a Space Invaders clone. The player shoots alien vessels to try to stop an alien invasion. The player controls a small space ship in the bottom half of the screen which can only move left and right. Moving left to right, as well as swooping towards the player from the top half of the screen, are the invading alien vessels. These fire randomly upon the defending player. Alien creatures, include: swooping bird-like aliens, green clouds, and robots. If your ship is hit, it is destroyed. When the player has destroyed all ships, they move to a higher difficulty level with faster moving ships that fire more frequently. The player has a total of 3 lives. When all are lost, it's game over.