Devil May Cry 4 - Unlockables

Heaven Or Hell mode
Successfully complete Son Of Sparda mode.

Dante Must Die mode
Successfully complete Son Of Sparda mode.

Hell And Hell mode
Successfully complete Dante Must Die mode.

Super Dante costume
Successfully complete Dante Must Die mode.

Super Nero costume
Successfully complete Dante Must Die mode.

Bloody Palace
Successfully complete Devil Hunter mode.

Art
Complete the indicated task to unlock the corresponding artwork.

Demon Invasion: Complete Dante Must Die mode.
Light From The Demon Blade: Complete Hell And Hell mode.
The Cast: Complete Devil Hunter mode.
The Demons and 12 publicity pictures: Complete Son Of Sparda mode.
The Ladies Of Devil May Cry: Complete Heaven Or Hell mode.
The Two Heroes and 29 character images: Complete Human mode or Devil Hunter mode.

Alternate ending sequence:
Successfully complete the game. Protect Kyrie during the credits mini-game for over 90 seconds to view the rest of the ending sequence featuring Dante, Trish and Lady.

Accomplishments:

Complete the indicated task to unlock the corresponding accomplishment. To view your accomplishments, go to "Mission Menu", then "Network", and "My History".
Grim Reaper

A Comfortable Pace: Clear mission 11 in Human Mode.
Easy Does It: Clear all missions in Human Mode.
Half Way There: Clear mission 11 in Devil Hunter Mode.
Done and Done: Clear all missions in Devil Hunter Mode.
Rock and a Hard Place: Clear Mission 11 in Son of Sparda Mode
Hardly A Simple Task: Clear All Missions in Son of Sparda Mode
Easier Said Than Done: Clear Mission 11 in Dante Must Die Mode
All Bow Before You: Clear All Missions in Dante Must Die Mode
Step into the Light: Clear All Missions in Heaven or Hell Mode
Tonight, We Dine in Hell: Clear All Missions in Hell or Hell Mode
The Best of the Rest: Clear all missions in Human Mode with an S ranking.
A Cut Above: Clear all missions in Devil Hunter Mode with an S ranking.
A Stunning Feat: Clear all Missions in Son of Sparda Mode with an S Ranking
Never Say Die: Clear all Missions in Dante Must Die Mode with an S Ranking
A Throne of Glory: Clear all Game Modes
Nothing Left Unsaid: Clear all Secret Missions
The First Circle: Complete Stage 10 of the Bloody Palace
The Second Circle: Clear stage 20 of Bloody Palace Mode
The Third Circle: Clear stage 30 of Bloody Palace Mode
The Fourth Circle: Clear stage 40 of Bloody Palace Mode
The Fifth Circle: Clear stage 50 of Bloody Palace Mode
The Sixth Circle: Clear stage 60 of Bloody Palace Mode
The Seventh Circle: Clear stage 70 of Bloody Palace Mode
The Eight Circle: Clear stage 80 of Bloody Palace Mode
The Ninth Circle: Clear stage 90 of Bloody Palace Mode
Covered in Blood: Clear All Bloody Palace Mode stages
King of the Palace: Clear All Bloody Palace stages with an S Ranking
Speak of the Devil: Clear the game with Super Nero Dante
Smokin': Complete a Stylish Rank S Smokin' combo.
Smokin' Style: Complete a Stylish Rank SS Smokin' Style combo.
Smokin' Sick Style: Complete a Stylish Rank SSS Smokin' Sick Style combo.
Simply Spectacular: Complete a mission with an S ranking.
Modus Vivendi: Extend the Vitality Gauge to maximum capacity
Bat Out of Hell: Extend the Devil Trigger Gauge to maximum capacity
River of Red: Acquire 10,000 Red Orbs.
Your Cup Runeth Over: Acquire 100,000 Red Orbs.
Red Orb Millionaire: Acquire 1,000,000 Red Orbs.
Filled with Pride: Acquire 10,000 Proud Souls.
Brimming with Pride: Acquire 100,000 Proud Souls.
Proud Millionaire: Acquire 1,000,000 Proud Souls.
Rookie Devil Hunter: Defeat a total of 100 enemies.
Skilled Devil Hunter: Defeat a total of 1,000 enemies.
Legendary Devil Hunter: Defeat a total of 10,000 enemies.
Item Collector: Acquire a maximum number of all items
Skill Collector - Nero: Acquire all of Nero's skills
Skill Collector - Dante: Acquire all of Dante's skills

Defeating Berial:
Use Grim Grip to reel yourself close to his head and attack with your sword. Once the combos are done use Grim Grip while still in the air. When his flames are gone, jump up to his head. Grab his head with the Devil Bringer then once he lands from that use Devil Bringer again to throw and punch him. After that, run away a short distance because he will release an explosion in the area around him. Make sure to pick up Green Orbs from the destroyed buildings and roll to avoid his flame geysers and sword attack. Continue attacking in this manner and use your Charge Shot to defeat him in under a minute.