Recently @BangTe made a level: Spoiler: Level/Card In which he made B walk on zapper. So here's the demo of that
Spoiler: Explanation normally B can't walk on zapper bcz zappers are a bit on lower height than normal block. But if we place zapper at the same height as of blocks with the help of auto slider, B can walk on that,also you can stop B anywhere without getting zapped
Incredibly stable ... Being able to stop and walk again without being burned is brand new ... good job @Anomynous
Now B is completely immune to zappers! Maybe Martin should add fire blocks for him... Anyway, thanks for the demo!