U-four-ia: The Saga was known as Hebereke in Japan, which spawned a popular series of games. This game was made late in the NES' life cycle by the production company Sunsoft, known for their stunning NES tracks. This song was made for an ice level.
Samples: NES synth samples sets from Samples of Insanity by musicalman; bass sample ripped from the game by myself.
A few comments:
-Some of the ADSR's sustain values can be a bit more varied in the pulse channels, like f4 d+4 c+6 and b4 b4 b6 starting with a pretty low sustain value on the first note and then raising the value one by one.
-The vibrato speed could be slightly slower and the vibrato amplitude could be slightly bigger.
-Some sections in the triangle wave channel can be used as labels, like