No.
There is no yoshis valley
You have to beat all of the levels and then you get extra levels when you beat it.
On Yoshi Island
When she jumps very high and comes down to eat you shoot an egg in her mouth. But when i do it it will not die, stupid fish.
You cant Download it, you have to buy it for the DS
maybe i hope so
There are eight yoshis in that game each level you use a different colored yoshi the red and dark blue fight bosses
eat chocolate
Yoshi himself with his flying ability.
For the melee stages hm? probably the worst stage is the past yoshis island stage.
You cannot download games to your DS lite.
No, the DS Download Play is a feature for people with one game card and 2 or more DS Consoles. Not every multiplayer game has DS Download play.