Here is the full list of all 30 Proxy Blade Zero achievements.
Start the game in Easy mode.
Finish Proxy Blade in Critical mode.
Finish the Dome Core in Critical mode.
Beat 25 Knights.
Finish the Cyber Dome in Critical mode.
Beat 50 enemies while in 75%+ Overdrive.
Beat 25 Archers.
Finish the Observatory Deck in Critical mode.
Beat 25 Hammers.
Beat Karthas in Critical mode.
Finish the Engine Grid in Critical mode.
Beat Anima in Easy mode.
Beat Anima in Normal mode.
Finish the Dome Core in Normal mode.
Finish the Dome Core in Easy mode.
Beat 25 Soldiers.
Finish the Cyber Dome in Normal mode.
Finish the Cyber Dome in Easy mode.
Finish the Observatory Deck in Easy mode.
Finish the Observatory Deck in Normal mode.
Beat 25 Grenadiers.
Beat Karthas in Easy mode.
Beat Karthas in Normal mode.
First Game Over.
Parry 50 attacks.
Finish the Engine Grid in Easy mode.
Finish the Engine Grid in Normal mode.
Beat 25 Footmen.
Return to Proxy Blade Zero.
Enter the Engine Grid in Normal mode first.