Yes you do, you piece together Emerald shards and create a Chaos Emerald.
in episode 45 continuing onto episode 46.
It was the episode named Countdown to chaos
To get the Chaos Emerald board, you need to complete all missions with a Gold Rank.
You can get the fourth chaos emerald in Sonic XX by changing the background to the Egg Carrier. Then change Sonic into the Eggman costume and click on his chest area.
In Sonic X episode (around) 32 Sonic defeats perfect Chaos as Super Sonic, and Chaos and Tikal disappear into the sky, after that Chaos is not seen again in the TV show.
First of theres more than 1.second you spelt chaos wrong.
There is none.
The fifth chaos emerald is above your first one not right above it.
Yes, using Chaos Control (but he needs a Chaos Emerald with him).
Chaos Control, Chaos Blast, etc. The Gray Emerald had the power to control the other Emeralds kind of how the Master Emerald does.
if you mean in the animated series, then yes. During the show (on kids4tv) sonic would have some things to take care of, but every once in a while there was an episode where sonic had to get/lose an emerald.
Tikal, who appears in Sonic Adventure and Sonic Adventure 2, is a priestess for the Master Emerald and Chaos, the god of chaos. She seems to be related to Knuckles.