From the instrument text for this song:

"This is a put-together
version of 2 chiptunes
by Phandral/Sanxion.
The tunes are...
*Milkshake, and
*Minimized
Just couldn't resist
making them with
"real" instruments.
Also I couldn't decide
which of them I liked
best, so 2 in One."

Both of the tunes mentioned here haven't been released, unfortunately...