▲
1
▼
In the manual for Rocko's Modern Life: Spunky's Dangerous Day, it is mentioned that Spunky is idiotic because a TV set dropped on his head when he was a puppy. This is not mentioned in any episode of Rocko's Modern Life, but is a reference to a real-life incident from Rocko creator Joe Murray's childhood, which is also referenced in the series' opening titles.
Manual (Page 6):
https://archive.org/details/rockos-modern-life-usa/page/n3/mode/2up
Joe Murray recounts the incident:
https://www.youtube.com/watch?v=b1TJZLobTBs#t=17
https://archive.org/details/rockos-modern-life-usa/page/n3/mode/2up
Joe Murray recounts the incident:
https://www.youtube.com/watch?v=b1TJZLobTBs#t=17
▲
1
▼
In the "Ice Scream" level of Rocko's Modern Life: Spunky's Dangerous Day, Earl the Dog can be found as an enemy in the Bigheads' house. The game was released a year before the airing of the Rocko's Modern Life episode "Frog's Best Friend", where Earl was adopted by Bev.
Gameplay of the third stage "Ice Scream":
https://youtu.be/f1fH7SJQRMk?si=Tc0rDde2UsYwL4KY&t=1677
Clip from the episode "Frog's Best Friend":
https://youtu.be/rpkda2A_5uA?si=andJJcLd_-JjUqh3
https://youtu.be/f1fH7SJQRMk?si=Tc0rDde2UsYwL4KY&t=1677
Clip from the episode "Frog's Best Friend":
https://youtu.be/rpkda2A_5uA?si=andJJcLd_-JjUqh3
▲
1
▼

Rocko's Modern Life Season 1 Episode 10B "Trash-O-Madness". Pilot version featured on the Rocko's Modern Life Season 2 DVD. The punching clip is featured in the pilot version of the intro, which can be seen here:
https://www.youtube.com/watch?v=zsQxnOMGZFg
https://www.youtube.com/watch?v=zsQxnOMGZFg
Related Games
Victorious: Taking the Lead
Nicktoons: Attack of the Toybots
The Fairly OddParents: Breakin' da Rules
Nicktoons MLB
Nicktoons Unite!
The Fairly OddParents: Shadow Showdown
Nickelodeon Party Blast
El Tigre: The Adventures of Manny Rivera
iCarly 2: iJoin the Click
Nicktoons Racing
Super Brawl 3: Good vs. Evil
Nicktoons: Battle for Volcano Island
Nickelodeon 3D Movie Maker
Rocko's Modern Life: Match-Master
SpongeBob HeroPants
The Ren & Stimpy Show: Buckeroo$!
Nickelodeon All-Star Brawl
SpongeBob's Boating Bash
Rugrats: Search for Reptar
Dora the Explorer: Super Star Adventures
Nickelodeon All-Star Brawl 2
SpongeBob's Truth or Square
Rugrats: Time Travelers
SpongeBob's Surf & Skate Roadtrip
Jimmy Neutron vs. Jimmy Negatron
The SpongeBob SquarePants Movie
SpongeBob SquarePants: Battle For Bikini Bottom
Rocket Power: Team Rocket Rescue
The Adventures of Jimmy Neutron Boy Genius: Attack of the Twonkies
Drawn to Life: SpongeBob SquarePants Edition
Rocket Power: Beach Bandits
Beavis and Butt-head in Virtual Stupidity
Zoop
Super Punch-Out!!
The Adventures of Batman & Robin
Rock n' Roll Racing
Superman
Mega Man X
Castlevania: Dracula X
Shaq-Fu
Fatal Fury Special
Spot Goes to Hollywood
Sterling Sharpe: End 2 End
WWF Raw
The Hunt for Red October
World Heroes
Spider-Man and Venom: Maximum Carnage
Total Carnage
The Addams Family
Rampart