UNLICENSED GAME
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Action 52 is an unlicensed multicart consisting of 52 individual and original video games, released in September 1991 for the Nintendo Entertainment System and in May 1993 for the Sega Genesis consoles by Active Enterprises (a Super Nintendo Entertainment System version was advertised in some magazines, but never released). It initially retailed for the comparatively high price of US$199 (or "less than $4 for each game"), and became notorious among gamers for the abysmal quality of its games. Many video game collectors value Action 52 for its notoriety and rarity.
The cartridge states that it contains 52 "new and original exciting games". The games cover a variety of genres, although the most common are scrolling shooters and platform games. Examples of scrolling shooters include Star Evil, G-Force, Thrusters, and Megalonia. Some of the platform games available are Ooze, Non Human, Alfred N the Fettuc, and Bubblegum Rossie.
Source: Wikipedia, "Action 52," available under the CC-BY-SA License.