Is there any evidence of the ten plagues in Hieroglyphics or is that a legend?
There is no evidence at all for any of the biblical stories involving Egypt. There is also overwhelming evidence that the origin of the Israelites is indigenous. There is no indication of a takeover as described in the Bible for example.
As for the plagues themselves, although there is one papyrus describing a series of disasters they do not fit with the ones described in the Bible, and neither do they fit in time with what is described in Exodus, which describes a New Kingdom Egypt, while the disasters in the papyrus must have been Middle or even Old Kingdom.
See http://en.wikipedia.org/wiki/The_Exodus#Historicity_debate for sources.
If Egyptian gods came and inflicted plagues in America, a nation where Egyptian gods are not worshiped, would our history reflect that? There is a bias with any culture to protect and unhold the religion of their ancestors. Especially a religion in which Pharaoh gets to become a god when he dies. Why would Pharaoh allow such history to be written? History itself is not without bias and will lean toward the writer's beliefs. This is a why the Bible is so interesting as a historical document. The failures and defeats are not excluded or hidden from the text. If I write a history of my own life, my desire would be to reflect upon the praises and accolades instead of listing my many failures and mistakes.