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