Tekken 1: Virtually everyone was clone-like with each other since many had the same combos (the dynamics weren't all that large). Even then, P.Jack and Jack-1 if you want to only count separate slots.
Tekken 2: Alex/Roger, Devil/Angel and Kazuya (largely the same moveset). Jack-2/P.Jack and King/Armor King, if you want to just count separate slots.
Tekken 3: Ogre/True Ogre for those who count by character slots. Panda/Kuma. Tiger/Eddy.
Tekken Tag 1: Want me to go there? 3 Jacks, 3 Kazuya-type characters, Michelle and Julia, Tiger/Eddy, 2 bears, Mokujin and Unknown, etc. Largely seen as the best before TTT2.
Tekken 4: Miharu/Xiaoyu, Panda/Kuma. Violet/Lee. None by slots, and people say it was the worst.
Tekken 5: Eddy/Christie, Panda/Kuma, and Devil Jin/Jin (some fans around this time decried they should be the same character). Ganryu, Jack-5, and Roger Jr. had largely similar movesets around this time.
DR: Eddy/Christie have separate character slots.
Tekken 6: Eddy/Christie have separate slots, Panda/Kuma.
Tekken Tag 2: Unknown/Jun, Violet/Lee, Sebastian/Lili, and Tiger/Eddy/Christie. Less than what people actually would find because the rest of the cast are more diversified than Tekken Tag 1's so even characters like Bryan and Bruce have very different moves overall compared to the Tekken Tag 1 counterparts.
If you count palette swaps, Tekken has never gone a game without clone characters. If you count it by character roster then only Tekken 4 but that's only if you count by the character roster and not palette swaps.
Take that, clone haters! >=)
"Death's vastness holds no peace. I come at the end of the long road - neither human, nor devil... All bends to my will."
How is Devil Jin and Jin a clone? In fighting games, clones are characters that have the same or very similar moveset. Other than the fact that they're the same character, Devil Jin and Jin's differences are like night and day.
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