Virtua Fighter has a few 1-frame combos. Not really links but 1-frame delays.
Akira and Goh for example have a few 1-frame delay combos.
Anytime you see ‘1 frame delay’ it means you have to delay the timing between two moves by exactly one frame. So normally a sequence would be: launcher (juggle), punch, kick (this is very basic). But with a 1-frame delay built into the combo it would be: float, punch, 1-frame of delay, kick.
The VF system has a way of making this not as difficult as it sounds. By allowing a dash or crouching dash to come out for one frame and then going directly into an attack you can build combos with one frame delays in them without having to manually restrict yourself to 1/60 timing. So it would be: launcher, punch, dash command, kick. And the dash command would come out for only one frame.
In VF though the character Akira actually has a move where you hold down K+G at the same time but release the G button after 1/60 of a second (or one frame). So anytime you want to use Akira’s knee it’s a one frame duration command. You basically have to [media=youtube]B-JNeOfb5-Q"[/media] while hitting K on the same frame.