In a large pitcher, combine the Kool-Aid mix and sugar with 2 cups of cold water. Stir until completely dissolved.
Add white grape juice and lemonade to the pitcher and stir well.
Just before serving, pour in the lemon-lime soda and mix gently.
Add ice cubes to chill the punch.
Serve in individual glasses or cups, and top with gummy sharks for a playful look.