This is a great game: that, I remember from thirty-and-some years ago when I played it at the arcade. The port is fine. I don't know if the graphics and settings are those of the Sega Master System version or the arcade's (I'd say the former), but the soul of the game is the one I knew. There is no reason to complain about the game posing a serious challenge — nor is the idea that it does so "because it was a coin-op, meant to extract money from players —: the difficulty is both fair and balanced, while it is also as stern as it should. The gameplay and game design are the strong points here: this could seem a game like one or two hundred other ones released in its age, but there is something crucial to it elevating it. So, why 4 stars? First, it is by no means a masterpiece in itself. SECOND: Retroism did the kind of publishing operation that reveals GLARING corner... or cost, cutting. This is unexpected, undeserved by both a game like this and who decides to take on its challenge, and blameworthy. It is a poor edition, with most controllers working poorly, relatively, or not at all. I will remember Retroism in a negative light because of the compatibility issues with controllers; the game, however, is playable with some of them (and some patience).
I have played the game a few hours. More than enough to post a review for those guys with "123x products in their account", not for someone who believes in something else than stock and trade market. The game comes with essential (in the good acceptance of the word) graphics and ambient music than never bothers or gets tiresomem as it must be for such type of games. You can unlock all levels since the start (the game advises you against doing so however). The difficulty level is nicely set: there are easy, average, and tough levels. "No chemistry knowledge is required" is a truthful statement. The number of small circles orbiting about atoms tells you how many bondings they have to make, and from that you infer what you need to do. A good, by no means great and in no way bad, puzzle game.
