Here is the full list of all 48 Deathsmiles achievements.
Cleared all 6 chapters at level 999 (continue may be used).
Clear Deathsmiles Version 1.1! (Continue OK)
Returned Sakura to the real world.
Defeated Ozier.
Chose Level 999 once.
Chose to stay in Gilverado with Sakura.
Powered up at 500.
Moved your demon friend!
Returned Rosa to the real world.
Chose to stay in Gilverado with Rosa.
Cleared the game with Rosa.
Cleared the game with all characters.
Returned Follett to the real world.
Cleared the Gorge and Hades Castle having selected Lv3 for all stages.
Selected Level 3 five times while playing.
Chose to stay in Gilverado with Follett.
Cleared the game with Follett.
Returned Casper to the real world.
Chose to stay in Gilverado with Casper.
Cleared the game with Casper.
Cleared any stage with 0.5 lives and 0 bombs.
Returned Windia to the real world.
Cleared the game without using any bombs.
Chose to stay in Gilverado with Windia.
Defeated Tyrannosatan, the Demonic Imperator!
Cleared the game with Windia.
Defeated Jitterbug, He Who Opens the Door!
Defeated Devaria and Givaria, the Twin Wyrms!
Defeated Bavaria, the God of Flames!
Defeated Mary, the Giant Cow!
Continued once while playing.
Defeated Sakura, Witch of the Swamp Wastes!
Defeated Ulan, Conjurer of the Forest!
Defeated Jordan, the Buried Baron!
Defeateded Deathscythe, the Wandering Reaper!
Played any mode once.
Cleared the game using Windia without continuing.
Cleared the game using Casper without continuing.
Cleared the game using Follett without continuing.
Cleared the game using Rosa without continuing.
Picked up 4 life-recovery items in one playthrough.
Waited for Sakura to explode while playing as Windia.
Score has reached 100,000,000 points.
Score has reached 200,000,000 points.
Score has reached 300,000,000 points.
Cleared Deathsmiles Version 1.1 with all maps at Lv3! (No Continues, Ex Map included）
Defeated Bloody Jitterbug.
Score has reached 10,000,000,000 points in Mega Black Label 1.1 mode.