γγ is the receptive helper verb for godan verbs.1
Kyouko got scolded.
δΊ¬εγ‘γγγγγγγγγ
Info
δΊ¬εγ‘γγ is marked with the γ particle, making her the core subject of the sentence.
γγγ (to scold) is in γ-stem form γγγ, allowing the receptive helper to be attached.
γγ (to receive (an action)) is the receptive helper verb, letting us know that the action it is attached to is being received (γγγ in this case). It is in the γ form, γγ, placing the sentence into the past tense.