So, I saw this movie yesterday with my wife.
Over all, I think it was actually pretty good and I take a bit of issue with a lot of the criticism I see. Pixel's is obviously a movie for Gen X-ers (like myself) to take their kids to. The 80's references will make the adults chuckle and the amazingly cool looking CGI and special effects of the video game characters and fight scenes will keep the kids enthralled.
Also, I'm really surprised that some people don't understand that the movie is poking fun of some of the tropes that they are criticizing it on. For instance, the claim that Ashley Benson (Lady Lisa in the film) is a literal trophy - Come on here, the joke is totally "What would happen if a /v/ member met his waifu?" Is it funny? I dunno, that's up to you to decide, but that's the joke. The guy even has a dakimakura of her for christ-sake. It's not a use of the "woman as trophy" trope, that's just insane reaching.
Now, far be it from me to defend an Adam Sandler movie that isn't "Happy Gilmore", but I'm actually of the opinion that a lot of reviewers are overreaching in their attempts to just be salty about this film. It's fairly funny, it's competently acted and it looks as good as you would expect a Christopher Columbus movie to look.
That being said, I do agree that Sandler is phoning it in on this film just like he has in the last few he's done, but it's easily outweighed by Dinklage and Gad, with the latter being absolutely stand-out as the crazy conspiracy theorist buddy (and obvious 4channer standin).