Tekken 3 Perfect -

Modern fighting games reward chip damage, meter management, and comeback mechanics. Tekken 3 had none of that safety net. Securing a Perfect there required:

In the arcade era, a Perfect was a taunt without words. It made the loser slam the cabinet and the winner sip their soda with smirk. tekken 3 perfect

Yes. A "Double Perfect" (winning two consecutive rounds with Perfects) is the holy grail. The community calls it a "Flawless Victory" or "God Run." Modern fighting games reward chip damage, meter management,

To achieve this:

The pursuit of a Perfect often leads to a playstyle that is paradoxically both aggressive and defensive. You cannot win a round by running away indefinitely (the game’s infinite stages for certain maps prevent wall splats, but not time-outs). To achieve a Tekken 3 Perfect, you must master "spacing"—the art of staying just outside your opponent's attack range while remaining inside yours. In the arcade era, a Perfect was a taunt without words

Unlocking Dr. Boskonovitch and Gon requires beating higher difficulties. Here is the formula versus the Tekken 3 AI: