Can I get the black tunic , white tunic, yellow tunic & purple tunic without..

Without hacking, it's not possible to get any other color tunics besides blue, red, and green. Sorry.

But on a side note in the Super Smash Bros series there are a bunch of different colored tunics for Link. :D

You can if you bet the game you might have a chance to get the yellow tuinc or fairy becase I got both but you might have to bet it more than one time

There is a way to get the black tunic for nintendo 64 but it also comes with the black gauntlets as well. They call them the Shadow Gauntlets and the Shadow Tunic! If you don't believe me look for yourself on YouTube.com! It's actually a glitch. And trust me when I say this, it is a VERY complecated glitch! If you try to do the glitch watch the video as you do it, and good luck!

Man I remember the days. The legendary yellow, purple, white and dark tunics. I searched for them a long time. Each having their own unique qualities were too good to pass up.

Purple tunic(5x running speed): obtained by beating running man in a race from gerudo valley to the lost woods? :D

Yellow tunic(unlimited levitation): obtained by finding ganondorf's skeleton key and unlocking the mysterious doors inside his castle. Running a dangerous maze and making it out alive. Purple tunic required apparently. Rofl

White tunic(halves all damage taken and stacks with great fairy's gift): obtained after getting the yellow tunic which supposedly allowed you to walk on the sinking sands in the haunted desert and locating a hidden temple. Within it apparently were master quest difficulty enemies guarding the tunic. LOL

Dark tunic(all swords double damage): apparently obtained by wearing the white tunic inside dark link's reflection room and battling against and defeating the toughest enemy by far in the game; oblivion link. As if! XD

Hahaha that was some awesome hoaxes. I couldn't even beat the running man. :P