In Co-op mode, Tsih's stats and passive do not change.
Tsih's Hyper, Stealth On, has a different effect in Co-op. When used, the player becomes unable to be targeted by Boss abilities that select a random player to target. This effect lasts for 3 chapters, or until the player enters a battle. If the player enters a battle during this effect, they will gain +2 ATK during that battle.
All boss abilities that cannot target the player while this effect is active are:
Tsih's passive and Hyper are unchanged in Bounty Hunt mode.
Tsih's base stats give her 40 starting stars and a price adjustment of 0% at shops.