Three out of the five adults charged in connection with the attack at the Parma Chuck E. Cheese restaurant have pleaded guilty.
Chakara Watts and Jahmeel Green Jr. pleaded guilty to misdemeanor charges and were ordered to pay court costs.
Jahmeel Green Sr. pleaded guilty to a felony charge and will be sentenced Aug. 19.
Albert Brown and Jermele Barkley will stand trial, but no date has been set yet.
According to police, the suspects were at a 2-year-old's birthday party in March and became upset when a photo machine was not working. The group started arguing with employees and the discussion turned physical. Six employees were injured, including two who were seriously hurt. Those involved fled before police arrived and were not arrested until weeks later.