Pac-Man Classic
The Matrix has 70 action games on file for the Intellivision, released between 1979–1987. 47 of them support multiplayer. They're ranked below by legacy score, so the games that shaped the genre on the Intellivision come first, with lesser-known picks further down.
Action games test reflexes and nerve. Expect fast enemies, tight controls and stages you clear by reacting quickly and learning enemy patterns.
Typical commitment: an evening or two (roughly 1–6 hours to see it through). Tip: Retro action games are often short but tough. Treat early deaths as practice runs; every attempt teaches you where the next threat comes from.