Doesn't even have to be that you "hated" the final result, just that it didn't meet expectations is all.
Well I am going to go ahead and start of with something I got hyped for and ended up hating. Back in the early 00s, M. Night was still considered a "good director" and was riding high on the success of The Sixth Sense. In 2003 he came out with a movie called Signs, a sci-fi horror film about alien invasions in the rural United States. I actually got rather hyped for the movie because of both M. Night's then-good reputation, and the trailers gave me genuine goosebumps that this would be perhaps "the new Alien." When I finally saw itā¦ it was boring and stupid. It had barely any of the atmosphere and creepiness the trailers had, many scenes just dragged, and I found the whole "aliens weak to water" thing so lame. In fact this is probably why Scary Movie 3 is my favorite of the Scary Movie spoof films. One of it's main parodies was on Signs, with a pre-crazy Charlie Sheen playing a spoof of Mel Gibson's character in Signs (also pre-crazy, go figure), and it was hilarious.
In the realm of games, I admit Sonic Boom: Rise of Lyric for Wii U was no where near what the debut trailer made it out to be. Now in all honesty I don't actually hate the game, and I WOULD say it's still many times better than Sonic 06 because at least I can actually play Sonic Boom without tons of glitches thanks to Boom getting that 1 GB patch, it's justā¦ I expected a grand action-adventure game that felt like a new generation Sonic Adventure 1 with a little bit of Sonic Heroes. What I got is a rather average platformer that feels like it has good ideas that needed WAY more time to be properly fleshed out. Fact the game pulled a Watch_Dogs by also degrading the graphical quality from debut trailer to final release is something to note. I actually like the 3DS Sonic Boom game more, Shattered Crystal. It plays more like a traditional Sonic game, and doesn't feel rushed (as in no glitches and no bad framerate drops).