Talk:Monsarno Research/@comment-26045225-20150416103632/@comment-26045225-20150416150419

OK, then I really have to wait, that's sad... I hoped that somewhen I experience the same bug I had with the Superior Squad HQ from the Superhero event. After I upgraded that building to lvl 2 the Arbitrarium costs were permanently set to 4 and did not increase :) So I was able to upgrade that HQ to lvl 166, then an update fixed that. Then suddenly I needed some around 660 for the next level...

For your question, I really don't remember when this started, it was after one of the quests but I don't know wich one. Next quest after that was to go to a friend's Springfield and collect from these walking corn plants. When I remember correctly I got some of these little shovel-like items from them.