I tested the Genesis Megadrive version of Lemmings using the Fusion 3.64 emulator, and it won't let one bash to the right against
the left-facing arrows after digging at the top of the Lemmings' Ark level either. It appears that only Neolemmix lets one do it.
Also in Superlemmini it won't let one either. So the level Groupie 33 'We don't need another hero' of Lemmings World Tour wouldn't be possible in Vanilla lemmix or Superlemmini since it's required in the Solution of the level.
Also Superlemmini doesn't have the belly check like Neolemmix, so the builder completes his build into the miner tunnel.
here is the Youtube video showing the level in Superlemmini. (no belly check). I guess I dislike the belly check also.
https://www.youtube.com/watch?v=1zZsmRoP4BsAlso WillLem noted the difference in his post 'Physic differences between Superlemmini and Neolemmix Number 7" where it takes fewer builders to reach a thin overhead platform'