Huh - wierd. I definitely played the game with the conveyor level as level 2, and this as level 3. Perhaps that was only for its inclusion in Donkey Kong 64? I can't quite recall if I played it outside of that.
What was level 3 in the standard US version then?
Zevox
DK has 4 levels in Dk64's arcade version in Frantic Factory. Level 1(We all know it) the conveyor belt level, which I thought was level 2. The one featured in smash, and then the final one, where you break the yellow panels and make DK fall.
I then played one in a hotel arcade, and found out that in THAT version of the game, the level featured in smash was level 2, and the game only had 3 levels, lacking the conveyor belt level.
So I assume that the cponveyor belt level was put in for DK64 and later versions of classic Dk to be released.