Dream Team USA, released on the Sega Genesis in Japan, is likely a sports game focusing on basketball. Considering the title, it's quite possible that the game recreates the experience of a basketball team, possibly featuring real-life players or fictional counterparts. Its gameplay would have likely revolved around scoring baskets, defending the opposing team, and executing various strategic plays.  Further information would require deeper investigation into Japanese gaming archives.

Dream Team USA (Japan)

Dragon's Eye Plus - Shanghai III (Japan)