A pop action toy ball assembly. The pop action toy ball assembly has a lower hemispherical section and a separate upper hemispherical section. The two hemispherical sections are joined together by a connection element. The connection element has one end that is anchored to the apex of the lower hemispherical section. The connection element extends upwardly through the apex of the upper hemispherical section without being affixed to the upper hemispherical section. The lower hemispherical section is selectively positionable between a normal orientation, where a first surface faces outwardly, and an inverted orientation, where a second surface faces outwardly. If the toy ball assembly is impacted while the lower hemispherical section is inverted, the toy assembly pops from its inverted orientation back into its normal orientation.