Balloon Fighting

Balloon Fighting is a classic arcade game. In it, the player controls 'Mama'- a pig
Mama Pig defends her home riding an elevator car moved by two 'Buuyan' (controlled by the player with a Y-axis [up and down] joystick), and uses a bow and arrow with slabs of meat against the balloon-riding wolves.
There are two stages. In the first, the wolves are riding to the bottom of the screen, and if Mama does not shoot them down, they will climb up the ladders. In the second (occurring after an 'intermission' sequence), the wolves are riding to the top of screen, and if enough wolves get there, they will push a boulder down bottom. In both cases, the stage is cleared by shooting all the wolves.
After the second stage is cleared a bonus round begins. In one type, Mama must shoot all the wolves only using meat, while in the other she must use regular arrows on the fruits. Afterward, the game begins anew with higher difficulty.