Cosmo Tank

Cosmo Tank is another vertical shooter from SNK for the Game Boy, released in 1991, this time featuring an untraditional protagonist – instead of a spaceship, the player controls an armored tank that blasts its way through enemy bases and open terrain. The combination of ground-based hardware with the classic shmup formula brought a small refresh to a well-worn concept: the tank moves more slowly and heavily than a typical fighter, which pushes the game toward more tactical, somewhat more deliberate shooting without losing the pace typical of the genre. Weapon upgrades collected after destroying enemy vehicles further motivate players to risk closer engagements, since it's precisely those encounters that yield the most valuable bonuses.

The visuals used finely drawn sprites for vehicles and buildings that, even on the Game Boy's small monochrome screen, remained clearly legible and gave the game a certain visual character compared to competing space shooters. The music, though limited by the eight-bit sound chip, reinforced the feeling of a military campaign, and together with the measured pace of play created an atmosphere distinct from faster, more arcade-like titles. Battles against larger enemy units at the end of stages also demanded careful maneuvering within the screen's limited space, adding an element of tactical thinking beyond simply dodging shots.

At the time of its release, Cosmo Tank wasn't among the heavily promoted games and remained more of a peripheral entry in the rich lineup of early Game Boy titles. From today's perspective, though, it's an interesting example of how the shoot 'em up genre could be varied through a simple change to the gameplay framework, and it offers fans of handheld shooters a pleasantly unconventional addition to their collection. Together with Battle Unit Zeoth, it forms a pair of SNK titles that prove even smaller publishers managed to offer a credible alternative to the genre's big names in the console's early years.