Well controlled and wonderfully designed 3D collectathon. Aesthetically excellent, both being adorable visually while also having a killer soundtrack. My biggest complaint with the game is probably that it just ends too quickly for how good what's there is, though the DLCs remedy this somewhat. Highly recommend the Death Wish DLC if you found a large portion of the game lacking difficulty wise like I did, it really does pack a punch.
If you ever enjoyed a 3D platformer or collectathon game, or those genres seem appealing to you, pick this up.

Game simply has too much going on at once, and there are moments where luck just decides you lose. The addition of the music box makes it so you will be spending your entire time looking at 2 screens, which while was also true for FNaF 1 at its hardest, its true here for the entire game. The mechanics of Foxy aren't explained well enough for how absolutely crucial they are to the game, which can really hamper anyone not already familiar with the game. Character designs are good at least.
I'd say play this if you want to gain a greater understanding of the series, but nothing more than that.

This game is actually scarier than the first but it suffers from mechanical issues.
For the scare factor I think the emphasis on keeping track of one animatronic does wonders, as opposed to FNaF 1 or FNaF 2 where your role is passive (waiting for things to show up and dealing with them) here you have to actively be tracking down Springtrap and luring him as far away as possible. The consequences of this are as soon as you lose him for just a second (which is easy to do, he really blends into the cameras) panic mode is instantly initiated at full blast. This is made even WORSE by your systems failing, taking away your only lines of defense and the wait you have to sit through for them to fix is agonizingly tense.

Sadly, despite its horror factor, this game suffers from gameplay issues. Since Springtrap is the only animatronic if he doesn't act aggressive enough you pretty much instantly win, unlike in other games where even if one wasn't being aggressive the others would make up for it. The reverse of this is also true, since Springtrap is the only threat here he's more dangerous than the ones before in other games, so if he decides to be super aggressive then you're going to be having a bad time. Still though I don't think this game ever outright decides you lose like FNaF 2 does, so that's a plus. Most of the Phantoms barely ever show up, BB, Foxy, and Freddy are the only ones you'll consistently have to deal with which sucks since that's only half of them. Additionally one of the phantoms (Puppet) is so terrible that if you get caught by them your run is basically over. The way to get the true ending isn't intuitive at all and was designed 100% with internet guides in mind, I don't think that's very good design.

If you enjoyed any of the other FNaF games give this one a go, it's definitely one of the best FNaF has to offer and because of that is also a decent one to play if you just want to get into the series.

The gameplay in this one departs from previous FNaF games, and I think it's a net positive. The lack of being able to see the animatronics on cameras I think adds to the fear factor as you don't get to see them in any capacity until they're close enough for it to be uncomfortable.
The gameplay in this one is also, I'd say, probably the least luck based out of the original 4. It turns into a quick decision making game about which of the 4 options you need to deal with first, left door, right door, bed, or the closet. The hearing in this one also really amps up the fear factor, the energy given off from staring out into your dark hallways having to listen for the sound of breathing is something not replicated in the series since.
FNaF 4 is I'd say the best FNaF game out of the original tetralogy, and I'd highly recommend anyone who's enjoyed one of the FNaF games to play this one if they have a pair of headphones.

This game is absolutely EXPLODING with content without having any grinding and has tones of replay value on top of that. Each campaign (there's 4) is excellent with each knight having their own distinct gameplay style and (with the exception of 1) all having completely unique level layouts. While it seems that Specter Knight is the obvious fanfavorite out of these (and I'm inclined to agree) ALL OF THEM are top quality and worth your while. On top of that there's the added little mini challenges and a whole ass platform fighter in here as well (though it is a bit simplistic). Aesthetically wonderful too, this pixel style really appeals to me and it's complimented by a great soundtrack. Play this game.

Focuses more so on the level philosophy of Sonic 3 than 2 or 1, which is somewhat of a shame since I prefer 2's, but this is fine. Levels rarely overstay their welcome like they did in 3 though, so this game is better on the level design front. Visuals and soundtrack are wonderful as always. Special stages are good (except in encore mode, fuck those), and blue spheres even returns as bonus content and as a way to get unlockables. Encore mode adds some replay value, but personally I don't find it as enjoyable as the main game. My biggest gripes are sometimes the levels just are kind of annoying (looking at you Stardust Speedway and Titanic Monarch) and there's not much originality here. Still great, play if you like 2D platformers or other 2D Sonic games.

Somehow this gameboy game is one of the best Mario games. I don't know how either.
Every location in this game is actually pretty unique and cool, the most generic is the tree one but that one is far from boring. None of the levels feel the same, and they're all designed wonderfully. I like being able to go to whichever you zone you want first, you'd think this might make the game feel boring and stagnant but I think the difficulty is welly done for each area and it lets you try a different place if you're getting tired of a certain area.
Recommended to any fans of platformers or 2D Mario games.