Talk:Regiment Battle 3/@comment-45.32.36.106-20171219083935/@comment-26215809-20171219085859

Chaos mode may not appear immidiately. It says so above as well: 
 * There is a chance that Chaos Mode will not appear when you clear the Expert map.
 * If you go to any map apart from the Chaos Mode map, it will disappear upon your return. It will appear at random after clearing the Expert map.

Try doing the expert map again. I did it twice and then chaos mode appeared for me