TheMonkeyKing89 said:You can finish all achievements in one day except for the 150 characters...that a take about....1-2 weeks at most.
You can actually complete the whole game in a day easily including the 200 characters. Just get the 75 guaranteed ones from the coin exchange. The longest grind is the 250 vs battle wins. But that is easy too since you can just spend the free gems you get from the campaign or sub story clears to play them for 1 gem a pop until you're done. Doing the side stories helps with getting new characters for the album too.
I'm not sure on my total playtime, but I just popped the last achievement a few minutes ago. I did the whole game in one sitting for the record.
EDIT: Just noticed after I scanned in it tracked my time. Took just over 15 hours. Not bad.