Released 5 years after the fact, Metroid II: Return of Samus is a slower and floatier Game Boy sequel that's nevertheless a two-pronged update: One for structure, by replacing the debut's roundabout mystery with more complex areas and a well-defined objective - and the other for gameplay, by adding new combat options and upgrades useful for secret-hunting and platforming alike (e.g. Spider Ball, Space Jump). The result improves upon their model of hostile sci-fi expedition, a slightly more feasible but no less intense effort when compared to the original, only the personality is missing.