An enjoyable top-down shoot-em-up similar to 'Raiden' for one or two players. 

You can play as either Mazinger Z, Great Mazinger and Grandizer. The controls are simple. There are three buttons A, B and C. A is used for the normal attack and, if held, does your Robot's unlimited special attack. B button does your robot's special punch attack and C button activates the robot's limited attack. You can collect items to allow you to do this signature move, a move that kill's all enemies on the screen. All the attacks are different for each mecha.  

There are plenty of power ups too, which are dropped by your alley robots. There are red, green and blue power ups, each one is a different style of fire for the A button attack. These can be upgraded by collecting three power ups of the same colour. There are also speed ups, additional energy cells etc. 

The graphics of the game are pretty good. There are loads of small enemies on the screen but no slow down. Shooting down these baddies causes large explosions and debris bursts around the screen. The enemies range from small, regular enemies to large boss enemies. The backgrounds are, on the whole, detailed and well drawn. There is also a large amount of scaling effects too. The levels range from the city to underwater and desert. The only problem with the game is the music. It is very basic even for a game of this age.

I suppose there is another problem too. The game never ends! Once you complete it you just start from the beginning again, with no ending even! This is a good fun game but it soon gets repetitive.