For more than 50 college students, playing Tetris for a total of 6 hours improved mental rotation time and spatial visualization skills in women and men.

Source:

Reprinted from Okagaki, Lynn; Peter A. Frensch, "Effects of video game playing on measures of spatial performance: Gender effects in late adolescence," Journal of Applied Developmental Psychology, Volume 15, Issue 1, Pages 33-58, Copyright (1994) with permission from Elsevier.