Here is the link to the Guide/Tips:
If you find this post and/or the tips helpful be sure to +REP
Tips and Strategies
1) First tip is... Go to the PSN store and download all of the free DLC... there are some free dungeons and other goodies to grab... there are also some non-free ones... some that allow you to play as Nisa and Gust (extra characters that you meet in the game)... But for sure grab all of the free stuff as they update it with more all the time.
2) When you get to a dungeon for the first time be sure to grab the hidden treasure within that dungeon... Use IF's dungeon skill called "search" using the Square button... I always grabbed the treasure before i completed any dungeon to be sure i didn't leave anything behind.
3) If you are trying to play through as fast and as easy as possible then go ahead and put the difficulty on EASY as there are NO trophies for difficulty level... Set it to whatever difficulty you like and enjoy! (your secret is safe with me).
4) When you see a purple pulsating spot on the floor use Compa's in-dungeon skill (monster call) to summon a Clione to fight... There are 7 different Cliones that all look the same but are of different level and strength. These little creatures are not as easy as they look so be sure you are ready for a good fight if the dungeon level is close to your actual level... The reason for this tip is that you will need to find ALL 7 of these and defeat them for 100% beastiary.
The first part of Hyperdimension Neptunia is very rewarding... for about the first 2 to 3 hours you will hear the "DING!" of trophies popping left and right... Neptune: Engage! is the first trophy you will get as you finish configuring the settings and start your game...
After a few events/skits you will be taken to the tutorial dungeon where you meet IF (one of your team members)... here you will be able to get the trophies Blind Ambush, Nep-Nep Rocket, Monster Huntress, and Chest Stalker... Then after the tutorial dungeon has been cleared you will get The 8-Bit Experience trophy... now your journey has begun!
The Quest Is Under Way,Virtually Fighting, Item Making, Cracking the Wallet, Actively Literate, Trendy, Overclocked, Teamwork, and Console Battle are all trophies that you can get during or right after your first dungeon or two.
After this you will have a good enough familiarization of the game... Now its time to work on getting the Key Fragments (Lastation Key, Lowee Key, and Leanbox three-six-key) as well as do some dungeon diving to grind and work on knocking out some "S" ranks on some of the side quests... On your way to getting the Key Fragments you will pick up a few story related trophies as well as have the opportunity to knock out a few other random trophies (See Guide).