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