Guilty Gear XX

Medal Of Millionaire mode:
Hold Punch + Kick + Slash + Hard Slash + Dust, then press Start at the title screen.
Information in this section was contributed by agugel.

Alternate winning pose:
Immediately hold Punch, Kick, or Slash when the "Slash" or "Destroyed" message appears. Note: Note all fighters have alternate poses.
Information in this section was contributed by agugel.

Alternate quotes:
Hold Punch, Kick, or Slash immediately before a match starts to choose between three sets of quotes spoken by your fighter during the match.
Information in this section was contributed by agugel.

Fast credits:
Hold Punch, Kick, Slash, Hard Slash, or Dust during the credits.
Information in this section was contributed by agugel.