The rivals ending always feels like one of those deliciously ambiguous finales that splits a fandom in half, and I get sucked into every possible explanation. For me, the first theory is the classic secret pact: the two competitors actually colluded behind the scenes to stage a final showdown that satisfies the public while preserving something bigger — maybe a rebellion, a shared secret, or a protected person. I see this in the way small tells are dropped earlier in the story: a glance that lingers, a line that doesn’t fit the surface narrative. Those tiny details feel like fingerprints of a staged end.
Another angle I love thinking about is the time/alternate-timeline theory. What looks like a clean finish could be a reset—one character dies, the other wins, but we’re actually witnessing a loop or branching timeline where roles swap. This explains contradictory flashbacks or characters who remember events differently. It’s the kind of explanation people use for twisty works like 'Steins;Gate' or ambiguous scenes in 'Re:Zero' — where causality is the real antagonist.
Then there’s the meta-motivated explanation: production pressures, censorship, or an author leaving the ending open to keep the franchise alive. Sometimes the rivals ending reads less like a narrative necessity and more like a deliberate tease for spin-offs, fan projects, or moral debate — and yes, that can be frustrating, but also brilliant when it spawns so much creative energy. Personally, I adore how every theory says more about the fans than the canon, which is oddly satisfying.