MORTAL KOMBAT 3
On paper we bet this sounded like a hell of an idea: get the real life actors that play Kung-Lao, Jax and Sonya in the Mortal Kombat movie to show up at E3 and fight during the reveal of Mortal Kombat 3. Genius.
Actually though it was all a bit awkward. Firstly because seeing real people dressed up as fighting game characters can be awkward (sorry cosplayers). Secondly, there just wasn't enough room on the stage for the actors, so it was essentially a trio of drunk-looking stuntmen stumbling around on a tiny stage, struggling to stay on camera and desperately hoping one of them doesn't jump kick an innocent bystander in the face.
The worst part of it was that there was that they didn't show off any Mortal Kombat 3 footage, and in our books if the game isn't part of its own unveiling that's a failed reveal.