Metroid: Samus Returns introduces a number of new abilities as detailed by the game’s producer, Yoshio Sakamoto, on the Nintendo Treehouse live stream during E3. The 3DS title – which is a remake of the Game Boy title Metroid II – gives players access to new Aeion abilities in order to bring a new, player-customised experience to the game. Given the abilities are energy-based, players can’t overuse them due to the limited amount of energy available. Sakamoto said fans would have the freedom to choose from multiple abilities but could only use one Aeion source at a time, meaning the use of the ability makes for a bigger, more dramatic experience.
Aeion abilities is just one of the new features in Metroid: Samus Returns and joins additional elements such as free aim, where players can shoot at enemies at all angles instead of being limited to a few as was the case in the original, and the new melee counter attack. The latter is a powerful move that allows Samus to free herself from sticky situations with enemies, giving you the advantage to fight back rather than jump to safety. Metroid: Samus Returns will arrive on the 3DS family of systems on September 15.
Source: Nintendo Treehouse