Hands down, one of the best looking classic doom game to ever exist. I, sometimes imagine that if Nintendo didn't release their famous Nintendo 64, this game probably wouldn't have exist..

Levels were fun and had a great balance of speed and puzzles in the beginning, than goes downhill and become way too convoluted.

Made it to level 8 and started getting lost/exhausted with looking for the final key

EDIT 9/21/24: I just beat the game and my previous points stand. The annoying puzzle levels only got more frequent and even more annoying, with solutions that are almost impossible to find out entirely on your own: "oh I can't believe I forgot to shoot at this slightly discolored pixel on this wall in this room to unlock one of 3 doors that I need to get to the exit"

Overrated. And a complete disaster when it comes to level design

I have never owned a Nintendo 64 and didn't even know that its ''Doom port'' isn't actually a port, but a brand new game that serves as a sequel to Doom 2.

The gameplay, weapons and such are going to feel very familiar of course, but the tone is drastically different. The ambient soundtrack surely is more ominous and eerie than the heavy metal bangers that id Software's Doom classics had!
What also stands out is the level design, this time more focused on puzzles, traps and mazes than straight-forward arenas (even though there is a bunch of levels like that too). It still plays 100% like Doom, though! But a lot of the time I found myself scratching my head, lost, trying to figure out where to go... to then choose not to waste my time and look it up on Youtube instead. So there's that...

There is a new weapon too, though! It's the UNMAKER (mandatory caps lock), which renders the plasma gun quite obsolete! It's fun to use and it kick ass!

One thing I noticed is that... I don't know, maybe I've been secret-hunting less than usual, but I didn't find any secret level. This is to say that some secrets are actually secrets here, if compared to Doom 1 and 2!

Base game alone, the longevity is around 8 hours (which is exactly how much it took for me to complete it). Still, after finishing the game, you unlock The Lost Levels, a new campaign that works as a connection between Doom 64 and the reboot series. The level design is a little bit more straight-forward here, feeling overall more action-packed. This adds 2 hours to the main campaign.

It's a good game if you like Doom and want more. If you don't, though, there isn't much to convince you otherwise.