At present, the game is not very large in any capacity. There are five episodes, four of which contain as many non-optional story missions while the last, episode five, contains two. There are eight locations officially available to explore (not counting Paulina's house), and the majority are less than two rooms large. For most games I would count these as negatives, since they would likely leave it feeling like a sex-fest of unearned orgies between characters who feel insubstantial and unreal in a world the size of a matchbox.
Given the rating, you can probably tell that's not the case. Amity Park stands out as a game that recognizes pacing as important. While the early game does include nudity, non-penetrative sex and masturbation, it is sparser than expected and probably not what you'll remember (that's not a jab; I loved the animations and other art, but the dialogue is far more memorable). I came to really enjoy certain characters (I already enjoyed most of them in the show, so maybe I'm biased) and loved every moment they were featured. Jack, in particular, is great, and he is not the focus of any sexual scenes (he is in one briefly, but it's the one scene where you probably won't be paying any attention to him, at least until it's over). It's a bundle of laughs at its best, and thoroughly enjoyable.
I mentioned the animations, so I'll type about them and the art a bit, even though I know as much about this as a goldfish knows quantum mechanics. I've seen some animations in 2D games that essentially look like someone's dragging sections of the image out and back again in an infinite cycle until you click to advance, or like the characters are digital puppets with a fixed range of motion and no souls. That's not the case here. While these characters still don't have souls, they do at least look alive. Not only that, they're crisp, quite fluid and enjoyable to watch, besides the obvious sex appeal. There is care put into these animations, and it shows. Every time one came up I became just that little bit happier. As for the environment, I was skeptical about integrating CG backgrounds into a game with 2D character stills and pictures, but they work together surprisingly well. The CG provides a consistent sense of space while retaining the feel of a digitally drawn background. As for the aforementioned character stills, they're a faithful recreation of Butch Hartman's style. Love it, you'll love them. Hate it, you'll want to douse yourself in gasoline in a fire pit before ten minutes is up, because there is not much deviation from that style aside from sexual differences.
The actual "game" portion of the game is currently so basic it's hardly worth mentioning, so I'll just say that it works as it should. It's a bit of back-and-forth punching and blocks, with the occasional ghost power or augmentation thrown in.
Before I move on to the cons, let me just say this: you can court a ghost. It gets five stars for that alone. I find it hard to accept just how rare (semi-)friendly, romantic ghosts are in fiction. If that rather specific interest appeals to you, this game does not disappoint.
Moving on: if I were to look for negatives, I would have to say (as I mentioned at the beginning) that it feels constrained. There are nine locations (one of which doesn't seem to be available at present), each with a few doorways to go through and about two characters at most you can interact with regularly, and even then it's meaningless, repeatable expository dialogue. Most locations lack interaction entirely, leaving them feeling empty and far too small (since there isn't really anywhere to go once you've arrived). Aside from story there isn't much to do, so once you've finished the game you can mess around with Desiree (the best female character in the game the only character with repeatable sex scenes in real time, as far as I know) until you get bored, then accumulate millions of dollars in minimum wage fast food work.
Still, it's a work in progress, so berating it for lacking in features that take substantial planning and development time would be unfair and an inaccurate representation of the fun to be had. Based on what is here, there is great potential for it to blossom into something worth telling your grandchildren about, even though you'll immediately be thrown in a home for doing so. The story is fun, the characters are entertaining and the sex is great. Plus, again, you can court a ghost.