Coronia solo run. Short Game, MCV Repacks - On. Limited MCV - Off. Well, It did take a long time due to "Red Ocean" & "Grumble Forest". However, "credits 10000 & speed 4" was a great challenge in Revolution Challenge, which is one of the most difficult level. Walls did great help before nano sync was ready. Duplicants helped a lot before many Buzzards were made.