http://www.pick.ucam.org/~ptc24/brickbats.html is a basic search for an open-source break-out game. I think it's even written in pygame. Anyway, the collision for any such game is not too hard, just check if the ball is inside any box. Something like:
for box in boxes: if abs( ball_x_pos - box.x_pos ) <= 20: #20 is 1/2 the box's width if abs( ball_y_pos - box.y_pos ) <= 10: #10 is 1/2 the box's height boxes.remove(box()) score += 100 That's an interesting background, BTW, if you made it. Ian