"Genetics Lab 2" - Metroid II: The Return of Samus [Gameboy, Nintendo, 1992]

THIS VERSION IS THE REMIXED AMR2 FAN GAME VERSION but it otherwise hits all the beats of the original. Metroid II did a masterful job of creating tension through clever game design and the score. This is the song that plays in the last area before the final boss, the Queen Metroid.