|Contest of Champions: Part 4|
|Air date||October 24, 2015|
|Written by||Eugene Son|
|Directed by||Tim Maltby|
Contest of Champions: Part 3
Hydra Attacks: Part 1
|“||You shouldn't be afraid to tell me anything. This changes nothing. You're still my nephew. I'm still your aunt. I'm so proud of the man you've become.||”|
— Aunt May
- Whizzer/Robert Frank
- S.H.I.E.L.D. Trainees
- New Warriors
- Aunt May
- The Grandmaster/En Dwi Gast
- Doctor Octopus/Dr. Otto Octavius
- Absorbing Man/Carl Creel
- M.O.D.O.K./George Tarleton
- Beetle/Abner Jenkins
- Sandman/Flint Marko
- The Leader/Samuel Sterns
- Abomination/Emil Blonsky
- Electro/Max Dillon
- Taskmaster/Tony Masters
- Drake Bell as Spider-Man/Peter Parker
- Jonathan Adams as Absorbing Man/Carl Creel
- Troy Baker as Hawkeye/Clint Barton
- Jeff Bennett as The Collector/Taneleer Tivan and The Grandmaster/En Dwi Gast
- Eliza Dushku as She-Hulk/Jennifer Walters
- Tom Kenny as Doctor Octopus/Dr. Otto Octavius
- Matt Lanter as Agent Venom/Flash Thompson
- Misty Lee as Aunt May
- Caitlyn Taylor Love as White Tiger/Ava Ayala
- Logan Miller as Nova/Sam Alexander
- Roger Craig Smith as Captain America/Steve Rodgers
- Fred Tatasciore as Hulk/Dr. Bruce Banner
- Travis Willingham as Skurge
- Grandmaster: This isn't over, I demand another game! A game of my choosing.
- Collector: No thanks brother, I'm done. I officially retire from games.
- Grandmaster: N-No No! You have to grant me a rematch, you have to!
- This is the last episode of season 3
- Collector announces his retirement of games to explore what Spider-Man spoke of.
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