User blog comment:KidVegeta/Canonicity/@comment-3097771-20101204091532

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Fusion Reborn is not canon. This movie, timeline and canon-wise is horrendous. Absolutely horrible. First off, there is no point where Vegeta is dead, after Buu and Goku is alive. While Vegeta was dead, Buu was still alive, so that's another point where this movie fails. Again, Goku clearly references Buu, even saying that Janemba is better, so this has to take place after the end of Dragon Ball Z (or at least right after Kid Buu is killed), but Vegeta would be alive during this time, and not in Hell/Heaven.

Final Ruling: Not canon -KidVegeta