This colossus has a massive problem with postioning since you need to get him to stand over a geyser to throw off his balance to shoot his feet and topple him. The problem is getting him to move is hard and getting him to stop cna be also difficult. I was lucky to get him positioned properly fairly quickly but for some people it can take a long time. However, once he's down it's fairly easy since he has only one weak spot and falling off is very unlikely since he is so wide.