An improvement on Prime in almost every area and potentially one of the best Metroid games. Holy crap everything is amazing. The exploration is much tighter, the Boss Battles (for the most part) are Legendary and that OST is God Like.

There's a few faults, the Sky Temple Keys, some Bosses and Mini Bosses are super frustrating and if your playing the GameCube version that penultimate Boss is gonna be a headache.

Do not play this as your first Metroid. But if you familiar with the series, you owe it to yourself to give this a try.