Tank
With World War II the multi-turreted tanks proved impracticable, and as the single turret on a low hull design became standard, crews became standardized around a crew of four or five. In those tanks with a fifth crew member, usually three were located in the turret (as described above) while the fifth was most often seated in the hull next to the driver, and operated the hull machine gun in addition to acting as a co-driver or radio operator. Well-designed crew stations, giving proper considerations to comfort and ergonomics, are an important factor in the combat effectiveness of a tank, as it limits fatigue and speeds up individual actions.
Tank Force
The gameplay is very much like that of "Tank Battalion", except that this time up to two (on an upright model) or four (on a cocktail) players can play simultaneously, there are seven new ("regular") types of enemy tanks (Normal Tanks, Speed Tanks, Hard Tanks, Big Tanks, Rapid Tanks, Tomahawk Tanks and Jeeps) and there is fifteen types of powerups (Bonus 500, 1000, 2000 and 3000, Shot Powerup, 4-Way Shot, Hyper Shot, Ripple Laser, Twin Shot, Small, Shield, Bomb Attack, Timer Stop, Force Field and Extend) which appear for players to collect in order to increase their tanks' firepower and boost their score (the one with the highest at the end of any round conquers its hexagon on the overworld map); each round is also the size of 17x13 blocks instead of just 13x13 off "Tank Battalion" and "Battle City", the enemies also roll into view from the top of the screen instead of just appearing and can also enter from the left and right sides, every fourth round is a "boss" round where the players must fight Train Cannons, AK Tanks and Boss Cannons at the top of the screen as well as the round's regular enemies, the players cannot destroy their own headquarters walls, when one player shoots another they will be pushed back (instead of getting stunned for a few seconds), and the game has an ending which will be seen after clearing all thirty-six rounds. The game's seventeenth round is also made to look like "Pac-Man" - even though Tōru Iwatani had no involvement with the title.