Its ridiculously hard, completely pointless, and totally random. The first few KQ's were great. They had a story, they had a flow,
THEY HAD A POINT!
Robo serves no purpose but to survive against a ludicris ammount of odds in an unreasonable ammount of time. My advice: Purge ROBO from the game and replace it with something more constructive. Hell a KQ where the whole point would be to sit in your mushroom for five minutes would be more constructive than ROBO.
EVERY time I have tried Robo KQ, we have failed. I have NEVER heard of a group winning robo except when G____G went in there when Blaaahs posted about it and even then half the room knew eachother.
Get rid of Robo.