Alex Kidd in High Tech World is the fourth game in the Alex Kidd series, after Alex Kidd in Miracle World, Alex Kidd and the Lost Stars, and Alex Kidd: BMX Trial. This game is unique to North America and Europe, as it was a completely different game in Japan. The original game from 1987 was titled Anmitsu Hime and was based on an anime of the same name. When the game was released in North America and Europe, it was changed to an Alex Kidd game with revised graphics and story.
In this game, a friend of Alex tells him of a new arcade in town called High-Tech World. Alex needs to track down five map pieces in order to get to the arcade before it closes at 5:00pm. Finding the map, Alex must escape his home, defeat a clan of ninjas, and make his way to the arcade.
Because the game was a conversion of another title, it contains new characters that never appear in later Alex Kidd games, and aside from Alex, includes no characters from the original games. Alex does have a brother named James in this title, which may or may not be his brother Igul from the first Alex Kidd game. The story also confused fans at the time as it shows Alex talking to his father at the start of the game, who has been kidnapped since the beginning of the series.
The game features 5 platform stages with RPG elements, including conversing with people and solving puzzles in order to proceed.