When I was growing up I had this really cool toy, I had it in the mid 90's, it was three inches tall and it was pretty posable, I remember it hanged colors when it was put in cold water or put up to a lamp, so if you can help I would greatly apreciate it.

That sounds like... "Zartan"... from the G.I. JOE line of action figures... height sounds right... and the color changes...

That sounds like..."Zartan"...from the G.I. JOE line of action figures...height sounds right...and the color changes...
Thanks bro but I know it wasn't zartan, I remember it came with some swords and it looke kind of like master chief and it was purple