Grand Theft Auto IV: The Ballad of Gay Tony (2009 Video Game)
In the mission 'For the Man Who Has Everything', Yusuf Amir says 'All work and no play makes Yusuf a dull boy'. Also, during the Club Management side-missions, Joni says this to Luis when she seduces him.
During 'Momma's Boy, Luis will sometimes say "Next round. Ding. Ding.", which is what Apollo says in the ending.
In the mission 'Kibbutz Number One', Mori Kibbutz gives Luis a destination to go to then says 'Engage'.
In the mission 'Momma's Boy', Luis fights in an underground fight club.
A mission is called "This Ain't Checkers".
One of Yusuf's mission is called "Sexy Time".
Rocco Pelosi makes an appearance.
In the Republican Space Rangers TV show, a robot cuts through the ship's door to awaken the rangers from their cryotubes eight years later than they expected.
Gay Tony sings a ballad