Yet another amazing game in the Metroid series. The combat changes are a welcome addition as they are extremely satisfying to use, and item upgrades are often obtained through fun and short puzzles. The main bosses are unique and fun to fight, but having to do all the metroid fights can get a little tedious. The backgrounds have a surprising amount of detail for a 3DS game, which really helps the world feel more alive. However, I do wish the music was more like Super Metroid's and had more of a melody instead of just being atmospheric. I also wish it wasn't quite as linear, but Mercury Steam did a great job of making the player want to return to old areas to get upgrades, especially with the addition of fast travel. I can't wait to see where the 2D Metroid series will go from here.