Just a suggestion, but, you know, we have an entire sub-forum for Other Games... Maybe move the Tetris Attack discussion to a new thread?
It would be best if a mod could split it off from the topic, but we don't have a mod for Other Games yet.
Onto Nuntar's levels, Assuming you mean the extra set of levels, the Gameboy version of 6-08 (not sure if its the same for SNES) was the hardest level of the game.
I didn't mean the extra set of levels; I would have specified if I had. I've never even played them..... maybe now that I have the ROM I'll take a look, if I can work out how to access them.
EDIT: wow, the extra levels are cool. I beat the first "world", but they are hard -- took me 13 minutes to get that far. I'll try the rest another time.........