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