Action packed game that you will always play for more! The player must protect and maintain the structure from being damage by the incoming enemies. Each time you knocked down an opponent you earn some score points and equivalent money for the type of enemy that you killed. You can only repair and strengthen the building after each game stage. If the building is hit by grenades, its health gets reduced and if the health reaches to a critical point zero, the game ends. Health can be updated for the current level, in an automatic manner just in case the player always forgets to monitor the health level. The building can be secure by strengthening it at every level. The cost of the repairs will depend on how much it strengthens the building. A cost of “5,000” will repair the building fully after each level and strengthen it by 10%. “10,000” strengthens the building by 20%. “15,000”strengthens the building by 30%. “20,000”strengthens the building by 40%. “25,000”strengthens the building by 50%. “30,000” strengthens the building by 60%. “35,000”strengthens the building by 70% and a “40,000”cost repair will strengthen the building by 80%. The sound volume of the Background which you can adjust to your desired volume, the Health meter, Level, Score, and Money are displayed at the top of the screen. The higher the level the more enemies will appear. The tank inside the building will always move in a counter clockwise manner. The enemy tank outside will also move in a counter clockwise motion while hitting the protected structure. You can really hear the blasting sounds for much more excitement!