This is Metroid II: Return of Samus completed with all the items collected. Being truthful to the original Metroid values, the game holds many items cleverly hidden, so finding all of them is not an easy task.
That being said, Metroid II doesn't keep track of the collected items' percentage. Moreover, the game has two excessive Energy tanks and an additional copy of each beam. It's been agreed that the author should take all the E-tanks, and at least one copy of each beam. However, due to the apparent linearity of this game, collecting so many additional items doesn't make the movie dramatically slower.
This movie is nearly 6 minutes faster than Alter's previous movie due to better precision, faster Metroid fights, and missile planning.
Note: This movie does not use secret worlds, also known as "select glitch".