Sorry, many people seem to mention this, but I would like to know what you consider Portal more to be.
A lot of people consider it to be a Puzzle, and many consider it to be an FPS without bullets.
I consider it to be both, but this poll isn't about that.
It's what you consider it more to be.
Anyways, happy gaming!

It's definitely more puzzle than FPS.

Just because a game is played in first person doesn't mean it's an FPS.

I say it's a puzzle game. in a normal FPS, you spend most of your time either:

a) blasting your way through wave after wave of enemies who charge suicidally at you (unless it's a "tactical" FPS, where you sneak up on an enemy who wants to carge at you)
b) picking up ammo from the dead enemies
c) walking around/sprinting around while looking for medkits

portal does not have these, therefore it's a first-person puzzle game (FPPG?).

It's definitely a puzzle game if I had to pick one. The gameplay is built around solving puzzles rather than blasting through swathes of enemies. Even when you went up against the final boss it was a puzzle.

I'm liking Aussiesnipers FPPG term!

I can't quite see how you could classify it as FPS to be honest. I mean it's there in the title... 'shooter'.

You don't exactly shoot anything, you just place portals. If we're talking ergonomics then I'm sure the device is just like that to provide people a familar setting. I guess people could argue that you 'shoot' portals, but that really is stetching the definition of 'shooter' to the limit.

I mean, the game is solving puzzles and you just happen to do it in first person mode. I'm totally with the whole FPPG, although that does seem to needlessly sub-classify something.

MindBullets:
It's definitely more puzzle than FPS.

Just because a game is played in first person doesn't mean it's an FPS.

QFT, and liking FPPG as a term.

Also, (offtopic) you avatar is from Attack of the Graske, no?

A puzzle game in the style of an FPS?

Yeah... I'm not saying that it's one or the other... but many people seem to consider it an FPS without bullets. It is a cross, but it's more puzzle, in my opinion.

its a puzzle game set in a first person perspective. simple as that.

genres are decided by multiple conventions not just one

If the definition of a first person shooter was simply a game in first person where a gun is all that is seen of the player most of the time then it would be an FPS but FPSs are more than that so it is a puzzle game.

No. It's an epic laugh and story, not a game. Comeon, GLaDOS (Turns out to be Vista: SHODAN Edition.).

Voodoo Child:
Also, (offtopic) you avatar is from Attack of the Graske, no?

It might be. I don't really know where it's from, other than it's Doctor Who. If I'm honest, I nicked it from someone else's avatar on another forum. :)

Oh, and who voted FPS? I want to see them justify that choice!

Puzzle. There's no shooting. Therefore, can't be an FPS, which is defined by that verb.

An FPS without bullets is Heretic. An FPS without shooting is non-existant, because otherwise we'd have to call The Elder Scrolls series one (and technically, that'd pass the FPS game if you take spells or archery).