Until I saw a video of it, and there was something about the simple style that piqued my interest. The way you solved the puzzles, by making boxes that link together, seemed unique. On paper, it sounds like Sokoban (Irritating and Unnecessary Gaming Cliché #2), but it’s really totally different.
Your little box, Box Boy, can produce a number of boxes that are joined together. How many he makes varies by level, but he can create stairs, bridges, hooks and so on from them. He uses these boxes to get across gaps, up ledges, over hazards, push switches, hold back danger, and so on, in many, many different ways.
What’s really clever about the game is that every world (with about 7 levels in each, with each level containing a few separate puzzles) a new element is introduced, and then binned until the final worlds. For example, “sticky” pads on walls that you or your boxes hang from, or platforms that vanish when you stand on them, or conveyor belts. They’re all added to the game, used a few times, then thrown away and replaced with something else. It keeps the game fresh and varied from start to finish.
I’ve completed all of the normal levels, and all of the first batch of bonus levels (three worlds worth), and unlocked another two bonus worlds. There’s also a challenge mode and a time attack mode, which I’ve briefly looked at but not really dipped into yet, so there’s still a lot to be done.