Here is the full list of all 52 Millennium - there are A New Hope achievements.
1000+ Fights
Spend 20+ hours on the game
All quests completed
Kill all animal kings
Kill Lord of the Ants
All secret rooms found
Kill Golem King
Discover all Bokden's locations
Kill Rat King
Kill Bear King
Kill Twin Tigers
Kill Queen Bee
Find the secret forge
More than 100 Orbs collected
Djinn Slain
Held more than 30 000 Gold
20+ secret rooms found
500+ Kills for Karine
Use Benoit's hand technics 50+ times
Summon Jeanne 50+ times
500+ Kills for Marine
Find 5+ secret rooms
Rogue Slain
Use Benoit's hand technics 5+ times
Save 100+ times
5+ Guts from Marine
Complete 6+ quests
50+ items found
Kill 100+ enemies with Marine
Play 1+ hour
Complete 1 quest
Find 1+ secret room
Collect 10+ orbs
Kill 10+ enemies with Marine
Use Jeanne for the first time
Find 5+ items
Finish the game in less than 10 hours in Hard Mode
Kill Crocodile King
Kill Lord of the Roots
Hard Mode Completed
30+ quests for Hirado
Karine Baroness Promotion
10+ changes of strategy
10+ uses of Marine's Talk
5+ successful uses of Karine's Craft
Complete the game fully (all quests, secret rooms and animal kings)
Use Benoit's hand technics 200 times
Never use "Go Through" until the end of the game
Kill 50+ enemies with Hirado