The blue one is a Knight. There are two black circles in the back and when you push them up and down they make the arms move!
And the brown one is a Bionicle. The head can move and comes off very easy. You can make the hands and arms move. You can make the legs move too!
You can take the top off this and get the guy out to play with. This isn't a Lego, it's Mega Block.