Pour Midori melon liqueur and pineapple juice into a cocktail shaker. Shake and strain into a chilled martini/cocktail glass. Add amaretto by pouring close to the inner edge of the glass; allow to 'sink' to the bottom. Float jagermeister on top; if needed, hold spoon to edge of glass while pouring into the spoon. Serve; might not look nice, but tastes a treat.