Dragon Ball: Shenlong no Nazo (ドラゴンボール 神龍の謎), called "Dragon Ball: Le Secret du Dragon" in Europe and "Dragon Power" in North America, is a video game developed by TOSE Software Company and released by Bandai for the Japanese Famicom on November 27th 1986, in North America in March of 1988, in France in 1990, and Spain in 1993. It is an action game based on the Dragon Ball TV series. The game stars Son Goku and very roughly follows the first two volumes of the manga, culminating in the first wish from Shenlong. The game consists of 2D overhead areas where Goku must fight many enemies and side scrolling sequences for the boss fights. It was added as a bonus feature in the Japanese release of the Nintendo DS game Dragon Ball: Origins 2 in 2010.
Although the Japanese and European editions of the game use the familiar art and music from the Dragon Ball anime, the North American version is stated to be based on Journey to the West and, as such, removes or changes all references to the TV show. Goku was changed to more closely resemble an Americanized "Kung Fu" stereotype, being pictured on the box with a white gi and blue headband. Master Roshi has been similarly changed to look more like a traditional martial arts master. Bulma is called "Nora", Yamcha is called "Lancer", Oolong is called "Pudgy", the Kamehameha is the "Wind Wave", and the Dragon Balls are referred to as "Crystalballs".
Source: Wikipedia, "List of Dragon Ball video games," available under the CC-BY-SA License.