The tekken single player mode in 4 or 5 (just remember playing it on ps2) sucked.  You could only plays as Jin and it didn't feel like regular tekken fighting.  But the tekken 3 one was fun.
Some weird minigames/spin-off of fighting games ou there.  There was a soul calibur wii game, the tekken nina game for ps2, and that virtua fighter one.  Best of them is mortal kombat shaolin monks.