9 Full Video Games You Can Unlock Inside Other Games

8. Tekken 1, 2, 3 & Starblade (Inside Tekken 5)

What ludicrously good value for money Tekken 5 on PS2 was. Coming with not only the base game - which was until Tekken 7, right up there with Tekken 3 as one of the best - but including ports of the arcade versions of Tekkens 1, 2 and 3, plus addictive shooter, Starblade.

To play, head down to the "Arcade History" section and select your game of choice. Needless to say the core gameplay still totally holds up - especially for one of the best games of all time in Tekken 3 - and you're free to hop between them to your heart's content. Sadly, being arcade versions means there are no PlayStation-exclusive modes like the Streets of Rage-style Tekken Force mode or Tekken Ball, but all-round, this is still incredible.

Owning this version of Tekken 5 doubled as owning a sizeable chunk of the entire franchise, and it marks the only time in Tekken history that Namco were quite so generous.