Hello ,
my question is how to make the black and white effect … just like “I AM ALIVE” Game
or other effects ?
and can i do it with indie version ?
Things like these are done using shaders. You can build custom shaders in Unity, and you won’t need the Pro licence.
Advanced shaders can be a rather involved topic, but there’s a fairly comprehensive set of tutorials on Unity webpage. You also might want to consult NVidia’s tutorial on Cg, the language used in shader construction.