(NOTE: This guide is intended as a reference for players not familiar with Japanese language, and only shows the conditions for unlocking this achievement.)
The One Who Conquered Deathsmiles:
To unlock, you must clear Ver 1.1 mode, selecting difficulty level 3 for all 6 maps and also selecting the ex map (Valley). Continues are not allowed.
Please note that, if you changed any setting in "Game Config" or used "Restart" from pause menu, NO achievement will unlock.