The Showcase of the Immortals has once again taken the world by storm. WrestleMania 31 could be the greatest yet, containing so many awe-inspiring moments the WWE Universe will never forget. But, which were our favorites?

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Picking the five best Show of Show moments is a task no less formidable than facing The Undertaker on The Grandest Stage of Them All. However, we have risen to the challenge. From spectacular entrances to renewed rivalries to unbelievable surprises, WWE.com presents our five favorite moments from The Showcase of the Immortals, presented by “Terminator Genisys.”

Triple H looked to terminate with Schwarzenegger-infused entrance

What better way for Triple H to begin his monumental showdown against Sting than with an introduction from The Terminator himself Arnold Schwarzenegger. As the newly-inducted WWE Hall of Famer’s voice rang out across the capacity crowd, The King of Kings claimed a starring role in an entrance that looked like a scene out of Arnold’s movie.

Surrounded by the intimidating machines from the upcoming “Terminator Genisys,” and apocalyptic smoke which filled the air, “The Game-inator” rose for battle in full “Terminator” regalia, lifting a slew of skulls in the air with each arm to signal that he was indeed ready for all-out war. And as his music began to blare throughout Levi’s® Stadium, The Cerebral Assassin set his target on The Vigilante standing in the ring.

The Viper countered the Curb Stomp with a gravity-defying RKO

In the climatic final moments of Randy Orton’s brutal Show of Shows contest against Seth Rollins, the “Future of WWE” looked to have his prey right where he wanted him. But, that is where he learned a valuable lesson: never underestimate The Viper.

After dropping Orton to the canvas, Mr. Money in the Bank flew off the ropes and leaped into the air to attempt his second Curb Stomp of the night. But, as his foot reached the back of Orton’s head, WWE’s Apex Predator suddenly propelled himself upward. His action catapulted Rollins into the stratosphere, setting him up for a cataclysmic mid-air RKO as he came crashing back down to earth. There have been plenty of cool RKOs, but none as awesome as this.

DX and NWO turned the clock back on The Monday Night War

As Triple H and Sting battled tooth-and-nail on The Grandest Stage of Them All, D-Generation X members X-Pac, Road Dog and Billy Gunn suddenly stepped onto the scene to help The King of Kings.

Then, only moments later, when it looked like The Game would use the Sledgehammer to finish off The Vigilante, The NWO’s Hulk Hogan, Kevin Nash and Scott Hall shocked one-and-all by emerging to go to war with DX!

As both iconic factions battled outside the ring, Sting regained control and locked in the Scorpion Death Lock. But, as he turned around, “Mr. WrestleMania” Shawn Michaels suddenly stepped between the ropes and blasted the painted Superstar with Sweet Chin Music. 

The greatest moment was yet to come, however. Once Triple H found a way to overcome his adversary, the famed factions stepped into the ring and surrounded the two competitors. There, the two war-time ring generals shook hands to finally put The Monday Night War to bed.

The Rock and Ronda Rousey took down The Authority

Stephanie McMahon and Triple H emerged before the capacity crowd to inform the people of Levi’s® Stadium that they had set a new attendance record at a walloping 76,976. As they congratulated each other and basked in their own glory at the expense of the WWE Universe, though, The Rock opted to interrupt without warning and took The Authority to task.

Just when it looked like The People’s Champion might renew his tremendous rivalry with The Game, Stephanie interjected and eventually slapped The Great One before ordering him out of the ring. However, in a moment that no one saw coming, The Most Electrifying Man in All of Entertainment spotted UFC Women's Bantamweight Champion Ronda Rousey in the front row and invited her to join him in the ring.

In the midst of incredible anticipation that surrounded their subsequent war of words, The Rock and Rousey proceeded to expel Triple H from the squared circle, paving the way for Rousey to lock up Stephanie and toss her around the ring like a rag doll. 

Seth Rollins cashed in Money in the Bank and became the WWE World Heavyweight Champion

At the height of a career changing WWE World Heavyweight Title WrestleMania main event between Brock Lesnar and Roman Reigns, Seth Rollins sprinted to the ring without warning and declared that he was cashing in his Money in the Bank contract. Since the match-in-progress had not yet concluded, the grueling contest was instantaneous transformed into a Triple Threat Match.

Rollins attempted to take full advantage of his war-torn opponents. Still, The Beast Incarnate roared back and lifted the “Future of WWE” into position for an F-5. At that moment, though, Reigns reengaged and speared Rollins right out of Brock’s arms. But before he could cover, Rollins hit his one-time “business associate” with the Curb Stomp and pinned him to capture the illustrious title!