Here is the full list of all 20 Angry Video Game Nerd I & II Deluxe achievements.
Find all S*** Pickles
Beat the Tower of Torment
Collect all cartridges in all chapters!
Beat Angry Video Game Nerd II
Find all the upgrades
Find the Cape
Die 100 times
Find the Turbo Pad
Find the Uber Scope
Find the Glove of Power
Find the Swear'n'Scout
Beat Angry Video Game Nerd Adventures
Unlock all playable characters
Ride the Fire Shark
Kill Santa
Collect all cartridges in a level
Perfect a stage (No deaths!)
Kill Naggi
Find all the Future Nerds
Achieve a perfect on all stages in all games