Go! Go! Tank is a tank-based action game released in Japan on the Game Boy. The gameplay most likely involves controlling a tank, navigating various levels, and engaging in combat against enemy tanks or other opponents.  It's likely a top-down or side-scrolling perspective, typical of tank games of that era. More specific details concerning the gameplay, plot, and developer information require further research.

Go! Go! Tank (Japan)

Gluecksrad (Germany)