I-ZR Research Program

The I-ZR Research Program is the research program owned by Army of the Republic of Vietnam and their Umbrella Forces that they will research on Rottytops and her undead zombies.

It called as the Rottytops Program by Leon Scott Kennedy and S.T.A.R.S,which it named after Rottytops because he and his members with Grand Alliance found this program and saved her and her zombies (as friendly zombies that they didn't harm Raccoon City)