ue ▁was ▁based ▁on ▁a ▁moment ary ▁change ▁of ▁the ▁p ish ch ik ▁and ▁the ▁" live " ▁voice ▁of ▁other ▁characters . ▁There ▁were ▁a ▁number ▁of ▁basic ▁plots : ▁the ▁medical ▁treatment ▁of ▁Pet r ush ka , ▁his ▁learning ▁of ▁soldier ’ s ▁service , ▁the ▁scene ▁with ▁his ▁b ride , ▁and ▁the ▁bu ying ▁of ▁a ▁horse ▁and ▁testing ▁it . ▁ ▁Initial ly , ▁Pet r ush ka ▁was ▁characteristic ▁of ▁typical ▁s lap st ick ▁comedy , ▁target ing ▁an ▁adult ▁audience . ▁As ▁pu ppet ▁theatre ▁gradually ▁became ▁a ▁pre domin antly ▁children ' s ▁entertain ment , ▁Pet r ush ka ▁became ▁less ▁vul gar ▁and ▁ag gress ive . ▁ ▁In ▁the ▁Soviet ▁Union , ▁Pet r ush ka ▁appeared ▁widely ▁in ▁ag it prop ▁the ater , ▁def ending ▁poor ▁pe as ants ▁and ▁attack ing ▁k ul aks . ▁ ▁The ▁Russian ▁Children ' s ▁W elf are ▁Society ▁( RC WS ) ▁hosts ▁an ▁annual ▁" P etr ous h ka ▁Ball ", ▁which ▁is ▁named ▁after ▁a ▁version ▁of ▁the ▁Pet r ush ka ▁character ▁who ▁fell ▁in ▁love ▁with ▁a ▁grace ful ▁ball er ina . ▁ ▁See ▁also ▁▁ ▁Gu ign ol ▁ ▁Pet r ush ka ▁( bal let ), ▁music ▁by ▁Ig or ▁Stra vin sky ▁ ▁P unch ▁and ▁Jud y ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Pet r ush ka ▁ ▁Pet r ush ka ▁and ▁Ver te p : ▁On ▁Trad