How many levels are there in tekken force on tekken 4

Four.

Level 1 is in the laboratory kind of place, where the boss is Combot, so its pretty much random.
Level 2 is a jungle, where the boss is Panda.
Level 3 is a dark hallway, where the boss is Kazuya.
Level 4 is like a Japanese style big mansion, and the last boss is Heihachi.
If you finish the game, you get to use the room you fight Heihachi in, in Versus mode