Blue's status as a classic rival makes him easy to hate, but his behavior in might actually be more justified than anyone's ever thought. Blue is characterized by an arrogance that makes for a nice foil to the protagonist Red or Leaf, frequently bragging or acting dismissive to other trainers. Although it's hard to redeem that behavior on the whole, Blue may not be as much of a liar as he's made out to be, making a case for at least a little reappraisal in hindsight.
An infamous brag from Blue occurs near the end of acquiring the Thunder Badge in, one of the earlier badges acquired in the games. On the luxury liner the S.S. Anne, Blue brags that he's already caught 40 types of Pokémon, a number that seems unachievable at that point in the story. It's no surprise that a cocky kid would make up a ridiculous sum in order to one-up his peers, so most players have never taken him at his word, but taking a more charitable angle yields some interesting results.
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It's not impossible that Blue could have actually acquired all the Pokémon that he said he did, and some math from Redditor zenno76 proves it. Backing up the claim requires some basic assumptions — like counting evolved Pokémon separately per the rules of the Pokédex. The creatures that Blue has on hand in the S.S. Anne battle show that he definitely has at least 8 types, and the Pokémon he could have encountered on the way raise the total to 28 possible acquisitions. Getting from 28 to 40 is the hard part, but the right techniques and considerations ultimately make it possible.
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Zenno76 takes the final pieces
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