LOGO FLAGS

LOGO_FLAGS is a gamevar that controls the appearance of the introduction and menu.

It is a bitfield. The values are:

1 - LOGO_FLAG_ENABLED
2 - LOGO_FLAG_PLAYANIM
4 - LOGO_FLAG_PLAYMUSIC
8 - LOGO_FLAG_3DRSCREEN
16 - LOGO_FLAG_TITLESCREEN
32 - LOGO_FLAG_DUKENUKEM
64 - LOGO_FLAG_THREEDEE
128 - LOGO_FLAG_PLUTOPAKSPRITE
256 - LOGO_FLAG_SHAREWARESCREENS
512 - LOGO_FLAG_TENSCREEN
1024 - LOGO_FLAG_STOPANIMSOUNDS

The default value is 255. That is, all the bits are set except the last two.