Y'know, I acctually have gone by the name "Count Koopula" on some message boards. (Plus, it sounds a li'l less "furry" ...ick)
That was always one of my favorite SMBSS episodes. I had it on video tape as a kid. (With the song in tact.)
Anyways, great piece. The Dry Bones are nice touch. (No Boos, or other enemies?) Still great piece, I like how "Count Koopula" is looming in the background. It kinda reminds me of the old Castlevania NES game boxarts.