In Co-op mode, Sherry's REC stat is increased from 5 to 6, due to her base ATK of +1. Sherry's passive does not change, and even overrides the ability; thus, Sherry will go second in battle when using the Attacker role.
Sherry's Hyper, Whimsical Windmill, has a different effect in Co-op. When used, the player will initiate a battle with the Co-op boss. In this battle, the player will gain +1 EVD and will be on the defending side.
Sherry's passive and Hyper are unchanged in Bounty Hunt mode.
Sherry's base stats give her 22 starting stars and a markup of +45% at shops.