Side Pocket is a well-known NES billiard game with several regional releases. The European version offers a fairly standard experience, with gameplay centered around the classic pool game mechanics of potting balls strategically.  Various game modes and difficulty settings would have contributed to the game's replayability. While the specific European publisher might not be immediately apparent, the game's success in this region is a testament to the popularity of the pool genre across different countries.

Side Pocket (Europe)

Shufflepuck Cafe (Japan)