I'm not saying there aren't any games that he likes, only that he gives them a 'bad' review, and if he actually likes them he only adds that in as a qualifier "I actually found it quiet fun despite all this other bullshit I've been complaining about for 5 minutes" and portal 1 is the only review I've seen where he had nothing bad to say about the game. Some quotes from his reviews of the games listed in this years top 5:

Bloodborne

I've been staring at the game's logo so long I can see the patchy wedding invitation font every time I close my eyes. It’s almost deal-breakingly obnoxious for the game model that lives by the motto: If at first you don’t succeed, die, die, die again.

SOMA

SOMA feels like a decent melancholy sci-fi mystery story living next door to a sci-fi horror B-movie whose dog keeps escaping and jumping in our swimming pool.

On the way to the final area to conclude the Simon story, a new character literally appears from nowhere, pops his head around the door and says, "Sorry to interrupt, player, but before you tie up the main plot, could we borrow you for five minutes to tie up the shitty monster plot as well?" So you follow him into a little room, press one button labelled "Resolve Shitty Monster Plot", and then get on with what you were doing. I'm only slightly exaggerating!

The Witcher 3: Wild Hunt

an epic tale of framerate loss, long load times, weird glitches (stop floating two feet in the air, Mr. Dwarf, I know you're only trying to compensate) and one good old-fashioned infinite loading screen

Elite: Dangerous

I actually liked this game, but only because I'm weird and I also enjoyed Euro Truck Simulator. I hate the fact that they make you download a special installation client, and that it is an MMO but it gives you a single player option but that still doesn't let you play offline.

Undertale

Not actually reviewed

There is nothing wrong with this, in fact, it is exactly why most people watch ZP. We love the negativity. But you simply can't deny that he tries his hardest to give all games a negative review, even if he enjoys them.