The Human Body by Tinybop by tinybop. Our first app in The Explorer’s Library is a game for curious kids of all ages. Poke, probe, and investigate the skeletal, muscular, nervous, circulatory, respiratory, and digestive systems. A complex and wonderful world, The Human Body is brought to life with interactive animations and particle physics. From the beating heart to the gurgling guts, see what we’re made of and how we work.