In Co-op mode, Iru's stats and passive do not change.
Iru's Hyper, Extended Photon Rifle, has a slightly different effect in Co-op. The Hyper will only deal damage to enemies and not players, but otherwise functions the same as in Normal mode.
Iru's passive and Hyper are unchanged in Bounty Hunt mode.
Iru's base stats give her 44 starting stars and a price adjustment of -10% at shops.