To get a shadow chao you give the chao green chaos drives before he evolves. Before he
evolves make running ether his only ability or his best ability. After he evolves he
should have spiked hair with green stripes on them. Now, wait till the chao is 3 years old
or until it has it's first NATURAL mating season and then give it a lot of green chaos
drives again until the stripes turn red and you now have a shadow chao!!! To check the
chao's age, take it to the doctor in the kindergarden and look at the medical chart. If
you want more information, this is the best website and it tells you how to get pretty
much any chao except for the tails and amy chao. http://chao.hippotank.com/sa2/evolution1.php

get a spotted egg