Here is the full list of all 11 Phantom of Zana achievements.
Overcome the existential crisis.
Spend more than 5000 coins at the shop in a single playthrough.
Acquire 12 points in the attack power stat in a single full playthrough.
Acquire 12 points in the shot power stat in a single full playthrough.
Acquire 12 points in the defense power stat in a single full playthrough.
Acquire 9 points in each of the 3 main stats in a single full playthrough.
Acquire maximum MP Regeneration in a single full playthrough.
Find The Prince.
Complete the game from start to finish without using the level select menu.
Complete the game from start to finish without using the level select menu 3 times.
Watch the end credits until the very end.