1/2 oz of Vodka
1/2 oz of Gin
1/2 oz of rum
1/2 oz of Triple Sec
1/2 oz of banana liqueur
1 oz of Orange Juice
1 oz of grapefruit juice
1 oz of Pineapple Juice
1 splash of grenadine syrup
1/2 oz of melon liqueur
Pour all ingredients into a cocktail shaker half-filled with ice cubes. Shake well, strain into a highball glass filled with ice cubes, and serve.