Fieldrunners 2 offers 25 levels with 4 different zones and backgrounds. Players choose at most 6 types of weapon and 3 types of consumptive item at the start of each level. Fieldrunners 2 also offers 3 levels of difficulty for players, which are casual, tough, and heroic modes. Just like any other tower defense game, players then pick a tower and slap it down on the map, wait for enemies to start to falling, and earn more cash to build more towers.
Players lose the game when the amount of escaped enemies reaches 20. If players win, the game will give players 1 star (for casual mode), 2 stars (for tough mode), or 3 stars (for heroic mode). Players can choose to continue playing in the endless mode after passing each level. No matter players pass the level or not, the game will give players a certain amount of coins according to players’ performance. Players can use earned coins and stars to buy more powerful towers. Fieldrunners 2 offers 25 types of weapon, and 5 types of items. Each of them has distinct range, effect, and weakness.