Caltron - 9 in 1 (USA) (Proto) (Unl)

Caltron - 9 in 1 is an unlicensed NES multicart, essentially a compilation of nine different games packed onto a single cartridge. These games are often bootlegs, hacks, or sometimes original but low-quality titles, frequently containing bugs or lacking features compared to their official counterparts (if applicable).

Players will find a mix of genres such as action, puzzle, and simple platformers. Some of the more "famous" (or infamous) titles included in the collection might be variations of "Balloon Fight", "Excitebike", "Pooyan", "Millipede", "Magic Carpet", "F1 Race", "Billiard", "SD Fighter", and "Ninja Kun". Despite the "9 in 1" title, the actual number of distinct, playable games can be misleading, as some "games" are merely slightly altered versions of the same title or even non-functional.

The gameplay experience is generally considered poor, with simplistic graphics, repetitive sound, and clunky controls. The main objective for players is often to simply try out each game and see if it's playable, often for a nostalgic appreciation of "weird" old multicarts. There are no complex storylines or deep progression systems; each game is a standalone experience, usually focused on achieving high scores or clearing simple stages. Being a "Proto" (prototype) and "Unlicensed" release further explains its rough quality and lack of polish.