After beating this game, I have to say the effort of beating it, totally not worth that ending. The story itself is given in snippets after each level, and after a set you get a short cutscene. At first I thought this was a brilliant way of cluing people in on the story without being heavy-fisted about it, but some of the cutscenes repeat with tiny little details changed, and it gets a little confusing as to whether or not your game is broken at that point.
As for gameplay, you start out only having to deal with positive and negative fields. This is a simple mechanic, and it continues for a few sets before you learn something new about the game. By the end you'll have come across several different mechanics over time, which are interesting in their own right but some of the level layouts or rather...bad. You have to either clear out particles by making them smash into each other, or move a certain type of particle to a location. The problem comes when you start doubling up on forces you have to deal with. When massive particles are flying towards you constantly, and you have to precisely hit them to send them flying off to an exact place without yourself getting pulled in...the cluster of different forces makes it nigh impossible to effectively move, and by the end of the game it feels like random chance.
You shouldn't have to fight against the controls of a game to beat it. In the last few levels it took probably thirty-fourtyfive minutes each. Fine, some games that's normal. But this game puts you in a little arena against set entities to interact with. It probably takes five-ten minutes to figure out the puzzle, and after that it's just a frustrating journey of fighting against the game's forces to try and accomplish the goal you KNOW how to do but can't because of apparent randomness of the particles.
That said, this game isn't randomized. Like, at all. It's just the gravity-like attractions mean that if you're two pixels over from how you were last time, the ENTIRE board can suddenly shift around and end up moving in a completely different way than how it did before. So you have to be picture-perfect to get some of the levels completed, and even then it still feels like you just have to plain get lucky.
The story is fairly simple, but delivered in a delightful way. But the difficulty of some of the later levels in each set is pretty damn stupid, it feels like you're trying to break through a wall with a wooden spoon, while you're on fire. The beginning of the game? Very simple, a child could probably do the first set of levels or two and get a fair grasp at the science behind it. It's actually really relaxing towards the beginning, and mashing particles together in a sandbox is actually really fun. But when you have a specific goal to do, and that goal requires super precise timing in a game where you have to fight just to keep from moving, it's super frustrating.
It's a beautifully crafted game. The visuals are sleek, the science behind it is rock solid, and the transitions are really beautiful. In fact, if it wasn't for the difficulty being absolute trash at some points I would highly recommend this game. As is, the repeating cutscenes and frustrating gameplay are so bad I simply can't recommend it. Unless you just REALLY want a hardcore physics-based particle game, you probably shouldn't get this.