Halo 3, the third installment of the halo series, made everything from halo 2, better. The weapons were all upgraded, they got cooler. The graphics obviously got a lot better. Campaign and multiplayer were awesome. For halo 3 something was added that dramatically changed multiplayer gameplay, items (see left column). You can pick up items which perform different tactical tasks. For example, bubble shield will block anything that is inside it from damage. Energy drain will drain all the shield to anything in its vicinity. These items added a different dimension to halo 3 gameplay.