AM2R is much better than the original, but in a lot of ways feels like a half step. The combat with the Metroids might even be worse than the Gameboy game, and the control, while improved, still isn't perfect. The save feature is the same, and can often lead to loss of large amounts of progress. Area 3 still sucks too. Any game with darkness as a gameplay mechanic automatically loses points in my book. Anything else I didn't mention is a genuine improvement. The new music is great, and the new areas added in tend to be fun additions. It is a better experience than the original game, and a fine take on the Metroid series, but it's ultimately easy to tell that this was made by one person, however impressive that work may be.