Bob Ball

Capture the playing field and avoid the red bouncing balls! Capture 75% of a room within the time limit to pass a level. Each stage contains one more ball and gets progressively more challenging.
INSTRUCTIONS
☞ Start with 2 red balls bouncing in the playing field.
☞ Build horizontal or vertical lines (walls) within the field.
☞ If the walls reach the edge of the area without a ball colliding into them, the empty area bound by the line becomes ‘captured’ and filled black. If a ball collides with a wall while it is building, the wall stops at that point and the player loses a life. The player has a time limit within which to capture at least 75% of the room's surface area. When that percentage is exceeded, the level is complete and the player progresses to a new room with one more ball bouncing in it than in the previous level.