The D Was Watching/Twin Maximum Suicide (Ｄが見ていた／決死のツインマキシマム Dī ga Miteita/Kesshi no Tsuin Makishimamu) is the twenty-eighth episode of Kamen Rider W. It is the concluding part of the 'D' arc, D standing for Denden (Sensor) and Disappearance. The beginning of this episode marks the only appearance of a Twin Maximum Drive.