A new century of fighting
First of all, the graphics: progressive scan,very sharp texures compared to other top games , good poly- models but not that much detailed, huge fighting stages but could have been more detailed some times, nice details like people watching the fight and running away if too close or breaking walls etc. All in all this makes a very good visual experiance.
The sound is quite stylish, too, modern techno beat in a very good quality,especially the opening music is dramatically and wonderful.
But still the punches could have been better but hey, the first tekken with real voices(native languages only) giving those characters what they really deserve, character!
Gameplay: many people are saying that T4 is too slow, ok maybe but not every character is slower then compared to TTT. For example Kazuya uses quite easy, maybe too easy, input comands which makes him quit fast and dangerous compared to the new charaters like Steve, who allways trys to hide and score a big slow punch. So Tekken 4 is slow but canbe fast,maybe even faster then any other Tekken if you know how, this means if you are an professional. So T4 is more for beginners and could be good for professionals. That depends on your own fighting style
The new charcaters and new design.
Everything needs to be stylish like the airport stage and it's great hypersonic plane, overhyped like the great skyline or metrosexual like Lee but luckily namco knew when they had to stop and bring some tough fighters like Kazuya and Paul .
The new characters, Steve the boxer, no kicks! Christie, same fighting style as Eddy and Marduk, the wrestler and, ok, maybe Jin,eh what ever it's called but he is definitly the most challenging character and slow actually as well ,are no real new inovations but they are all young and are giving the game some revitalization for the next century of tekken games.
All in all Tekken 4 is... good, yes it's really good, and most of all if you have Tekken 5 and Tekken Tag then you can also buy Tekken 4 , because it's a different game,different design, totally new stages, new, many different costumes, a nice story, too(unfortunatly no real cgi this time)