This year's E3 certainly had its share of Earth-shattering moments, but as ever, it also under-delivered in a number of ways that fans were desperately hopeful for. Sure, you can't please everyone given how entitled some gamers can act, but at the same time, a number of key games and reveals were curiously held back despite reasonable expectations that they would be there this time. That's not all, though: the likes of EA and Ubisoft refused to learn lessons from their previous conferences and kept it pretty much business as usual, while even some games that were revealed showed off some less-than-stellar mechanics and may well have sealed their critical fates already. Then there's those game franchises which sadly refuse to innovate or move with the times, and soon enough risk fatiguing audiences. It sure was an E3 for the ages thanks to Sony, Microsoft and Bethesda, but even so, it's tough not to expect even more from some games and developers, who put in only a minimal level of effort this year, or in one case, basically shouldn't have even bothered showing up at all. Still, there's always next year, right? Without any further ado, here are the 22 biggest disappointments of E3 2015...