These are not beta designs, but in Red & Green, Dratini and Dragonite had a few differences compared to the present ones.

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Decilla and Gyaon. Probably early designs of Tyranitar. Decilla is the substitute movement dummy, it was meant to be a pokémon. I wish it had existed.

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A deer pokémon was planned to be in the first generation. It seems like an early version of Stantler.

8 54

Beta Gyarados. A very drastic change in his design, Is like a mix between a worm and dragon. Very strange design...

7 34

Beta Scyther. A very drastic change to his final design, it's more like a dinosaur with aspects of a mantis.

4 25

Thanks Julian! Here some of my last art. 🤟

2 17

Purakkusu. It was planned to be a Pinsir evolution but probably finally was replaced by Heracross. It looks like a Scyther and Scizor counterpart. It is a very cool design, but what I think is the face doesn't convince me.

4 22

Norowara and Kyonpan. a very interesting evolutive line. Norowara is a voodoo doll and could have given a lot of play to the curse movement, and Pangshi is a kind of panda bear with a little paper where he writes wishes.

2 11

Haneko, Poponeko and Wataneko (Hoppip, Skiploom, Jumpluff). This is the evolutive line from beta version hoppip.

5 22