#10 Metroid

Metroid started open exploration. Super Metroid may have done it flashier, but original blew the NES into the eyes of all people who wanted to game. It masterfully used backtracking and puzzle solving to make it one of the most exciting games ever. The upgrade system to Samus's suit and weapons made her feel all the more powerful. The hectic combat kept you hooked and kept you saying, one more room, one more room. Metroid master key of puzzles, combat, and open exploration made it one of the most memorable and awesome games to date.