I feel bad about knocking a game for not leaning all the way into what is unquestionably a unique visual style, but the more I played Headlander, the more I was itching for any kind of depth. When it's not shallow, it's frustrating. I did honestly enjoy the segments where the game sheds its ambitions in favor of light, affable metroidvania puzzling, but there aren't enough of those moments. (A sequence where you scramble around an elevator shaft solving puzzles is easily the highlight.) The parts of Headlander that don't quite fit -- there's a final boss you have to fight using puzzle mechanics -- chafe to the point of discomfort.
Without those lackluster diversions, it would be an amicable trifle. Even at its best, the game feels like an idea gestating in real-time, like a sponge dinosaur filling up with water. So much of Headlander teases you with the idea of what could have been; a shame, because the game we actually got is kind of a bummer.