It's not extremley easy, but I did it in a few tries. So first you must build in the rat cave. If you do not have it already, buy it from city hall and wait 8 hours or set your clock 8 hours forward. Go to the rat cave and put on your suit (Via the blue tube!) Then travel to the sun deck and find optimum alfred. First click the first icon when it turns white.When it flashes green, move closer ,drag the second item forward and release. Move forward and click the third icon. Same for robots. Fight numbers: Fight optimum alfred 3 times and the robots just 2.
Rewards: Ability to check others in the Penthouse,Apology from Optimum and credits theme song.
Hope you get him!