I personally found that Episode 1 Chapter 2 could be done very quickly if you take the Hidden Route, just run through it on Easy and itll take you 5 minutes, if that. This also goes toward 39 Chapters on Easy, and unlike the mostly recommended Episode 5 Chapter 2, it has 3 areas, which goes toward 93 areas by yourself ( or 386 areas with another player) and you need to kill an easy boss, so that will go toward killing 30 bosses..