Sources:
"level1" by GOMUN56 https://www.youtube.com/watch?v=FtWKsgNIyAk
"Level1.aup" by RIcemaster3 https://www.youtube.com/watch?v=wU5fwdDHT68
"level 1 ytpmv" by Megamanlego http://www.youtube.com/watch?v=dPA27MUNS1o

I have no idea what the BGM is and it's nigh impossible to find more.