#1. Elimination from The Royal Rumble can occur if only one foot touches the ground
One of the most exciting parts of The Royal Rumble match is the near misses when WWE Superstars are almost eliminated but then save themselves.
The likes of Naomi and Kofi Kingston have famously had fun with this rule over the years, but it isn't a rule that has always been in effect.
When the Rumble match was first invented, the rules were not as clean cut as present-day This meant that there were several stars eliminated just by being knocked over the top rope.
This led to several stars being eliminated in the early years of the event when they could have actually re-entered if the rules were the same as the modern version of the match.
It has been made clear in recent years that superstars have to go over the top rope and both feet have to touch the floor in order for them to be eliminated. This has obviously been added so that the current crop of stars can find loopholes to avoid being eliminated and keep the WWE Universe entertained throughout.