Alright, I watched it and here is what I gotta say. You have to be more specific, why is it fun, why's the graphics weren't great for its time? Stuff like that. I really felt like the video is more of a commentary than a review, you should try to go in detail for the sections (Graphics, Gameplay, Story, etc) of the review.

I'll give you an example:

Quake 2 isn't really a sequel to Quake 1. The game takes place in a futuristic setting, where the player fights his way towards cybernetic aliens. Unlike the first one, the player was in a medieval setting, surviving his way towards Lovecraftian monsters, and visiting variations of castles or tech bases. While the game may be visually different and isolated from its predecessor, it still contains a lot of elements that makes it a Quake game. The Quad Damage is still gratifying to use just like before, the fact that Quake 2 is a run and gun focused shooter, a wide range of arsenals for your disposal, key cards you need to find to gain acess in a specific door, and so on.