When booting up Tekken 5 on the PS2, the player can play through the first few minutes of the old Namco space shooter game Star Blade while the game loads. The full game can be unlocked in "Devil Within" mode by finding the hidden ship from the game.
Contributed by MightyKombat
The "Final Frontier" stage has a large L.E.D. style board in the background that will occasionally show Pac-Man.
Contributed by Psychospacecow