You can visit a local retailer in Egypt to find the game. Ask friends if they have ever played the game so as to help you get it.
youtube
it doesn't exist
Ebay
yes you can find it in many levels
you can find them in Pumpkin hill
Aquatic Mine and Iron Gate
I believe sonic and tails can get bears in final rush for sonic for tails im not sure.
Actually there is a way to hack sonic adventure 2 battle and play as super sonic in normal levels just look around the internet and im sure you will find your answer.
Find a fish and use final slash on it.
There are goggles but their not called goggles, they are called sunglasses.
Find a mystic melody (usually in mission 3) and you can use it.
buy it preowned at game stop for around 8 dollars.