.B \-d, \-\-default
Reset video settings to default values (\-g 800x600 \-a auto \-w)
.TP
+.B \-\-renderer RENDERER
+Render the game using the specified video renderer. Valid values are sdl, opengl, and auto (the default).
+.TP
.B \-\-disable\-sfx
Disable sound effects
.TP