Stimpy's Invention Continue Passwords for Ren @ Stimpy: Stimpy's Invention. For REN: CITY: 8900003 L9NH2WZ POUND: 8710003 L9N22W6 OUTDOORS: 8520007 RC452WZ For STIMPY: CITY: 8700004 D2NG4WY POUND: 871000B 2LN24WZ OUTDOORS: 872000G F3444WN