In a cocktail shaker filled with ice, combine the vodka, white rum, gin, triple sec, amaretto, and peach liqueur. Add the sweet-and-sour mix and a splash of grenadine into the shaker.
Shake vigorously and strain into an ice-filled highball glass.
Slowly top the mixed drink with beer. Give it a gentle stir and serve immediately, garnished with a lemon wheel or a cherry.