Berzerk

Berzerk placed you in a maze of rooms full of killer robots, with electrified walls that killed on touch. Escape was the only strategy: clear a room and run to the next before Evil Otto — an invulnerable smiley face — appeared and chased you through walls. The arcade version was the first game linked to a real-life player death (two heart attacks in 1981-82). The 2600 version captured the original's claustrophobic anxiety. The arcade's voice synthesizer — 'Intruder alert!' — was missing, but tension remained intact.