Its easy to make player pong, but Im not sure about the one vid on returntoblockland.com. Make a soccer like building, its best to make a small one, make a brick, name it, then make another brick to press to release a pong ball. Then click the brick with a wrench that will be pressed to release the pong ball, click onactivate, then pick the brick that was named in the next one, look down for spawn projectile, then click the other and find the "Pong". It is best to set each one 1-3 so it doesn't go mad, for a small pong set its size to 0.300-0.400