
Grobda is a multi-directional shooter arcade game that was
released by Namco in 1984. It is a spin-off from
Xevious, where
the player's tank first appearedas an enemy.
The player controls a tank in an arena filled with numerous indestructible obstaclesand several enemy tanks. When the player kills an enemy tank, it will cause an explosion and any other enemy tanks that happen to be in the way at the time will share the same fate as the first one. But if the player's tank is too close to the explosion, it will also be killed. The player's tank has a shield that offers very temporary protection from enemy fire, but constant firing from enemy tanks will make it disappear.
The game runs on Namco Super Pac-Man hardware but with a DAC for speech. (Wikipedia)