Typo Attack

Typo Attack is a 1-player typing arcade game for the 8-bit Atari.

Can you defend 8 bases at once from a bombardment of falling typos. The player controls 8 bases, each represented by a different letter or keyboard commands. When that command is pressed, a laser is fired vertically to destroy the descending typos. During the level, the letters representing the different laser silos changes. If a typo reach the laser, a piece of ground is destroyed. If the ground is hit 5 times in one spot, the player's defenses are breached, and it's game over. Game play becomes progressively more difficult as the game progresses.

Source: TheGamesDB