(Note: I'm only looking for badges in the five primary categories. Challenge Patches are completely different: they require the completion of specific lessons, units, or courses.)

Based on what I've seen so far, to earn every badge in Khan Academy, you must:

• Watch videos (Nice Listener, Great Listener, Awesome Listener, Ridiculous Listener, Ludicrous Listener, Act I Scene I)
• Vote on comments (Thumbs Up, Thumbs Down)
• Ask questions (Bibliographer, Good Question, Great Question, Incredible Question, Investigator, Detective)
• Answer questions (Researcher, Good Answer, Great Answer, Incredible Answer, Excellent Teacher, Guru, Incredible Teacher, Sensei, Oracle)
• Flag comments (Flag Duty)
• Answer multiple problems incorrectly before succeeding (Perseverance, Tenacity, Persistence, Sticktoitiveness)
• Change your display (Express Yourself)
• Advance in computer science (Apprentice Programmer, Challenger, Programming Scholar, Mad Scientist, Collaborator, Tinkerer, Virus, 1000 Kelvin, Special Project, Evaluator, Astute Analyzer, Rave Reviewer, Friendly Hacker, Exterminator)
• Have a program with spin-offs (Inspiration, Good Inspiration, Great Inspiration, Incredible Inspiration)
• Answer multiple problems in a row (Nice Streak, Great Streak, Awesome Streak, Ridiculous Streak, Ludicrous Streak, Picking Up Steam, Going Transonic, Going Supersonic, Sub-light Speed, 299,752,458 Meters per Second)
• Answer problems AND watch videos in time limits (Inspired 15 Minutes, Power Hour, Double Power Hour)
• Complete specific tasks (Parent: Getting Started)
• Complete practice tasks (Makes Perfect, 5 is Alive, Fingers or Toes, Geek of the Week: Practice)
• Complete mastery exercises (Challenge Accepted, High 5, Hang 10, Geek of the Week: Mastery)
• Be active for a number of days (Good Habits, Like Clockwork, Atomic Clockwork, 10,000 Year Clock)
• Be a member of Khan Academy (Cypress, Redwood, Sequoia, Bristlecone, Full-Timer)
• Donate (Patron, Make It Rain)
• Maintain a streak (Spark, Flame, Torch, Bonfire, Furnace, Forge, Pheonix, Orionid, Geminid, Perseid, Lyrid, Leonid)
• Achieve a specific course level (Droplet, Ripple, Wave, Torrent, Cascade, Tempest, Maelstrom)
• Take on specific roles (Guardian, Support Advocate, Challenge Council, Documentation Doctor, Trusted Tester)
• Participate in special events (Backlog Buster 2018, You Can Learn Anything, I Beat Cam)
• Earn energy points (Ten to the Fourth, Benjamin Franklin, Ten to the Fifth, Frederick Douglass, 5 times Ten to the Fifth, Helen Keller, Millionaire, Ramanujan, Tesla)
• Achieve proficiency/mastery in a number of skills (Just Getting Started, Making Progress, Productive, Hard at Work, Work Horse, Magellan, Sally Ride, Copernicus, Kepler, Hypatia, Newton, Da Vinci, Atlas, Artemis, Herculean)
• Create videos (Galileo)
• Be specific users (Is Sal)

Is there any other badge I did not see after extensive research in Khan Academy?