Danny Phantom

This episode can be seen on the "Nick Picks Vol. 4" DVD.

Apparently, if Danny goes invisible and goes into the computer, he will go iside it. He won't just go right through it and go through the wall.

Tucker's screen name, "FryerTuck" is again referred to in "Beauty Marked."

The music that plays during the title screen is the same music that played during the title screen of "Mystery Meat."

Danny's screen name was "Ghost Boy," which is an odd coincidence, since that is the name that Paulina tends to call Danny since the episode, "Lucky in Love."

Look Hard: At the Internet Café, there is a sign that says "G.E.E.K."

This episode confirms the average grade that each member of the Fenton family gets: 1) Maddie - A. 2) Jack - B-. 3) Danny - C. 4) Jazz - A.

We learn that Danny's hairstyle when he is in ghost mode is constant, meaning that even when his hairstyle in human mode is completely different, when he goes ghost, it will return to its normal style.

Danny has officially crossed "teacher" off his list of future professions, even though Technus suggested it to him in "Attack of the Killer Garage Sale."

We learn that Mr. Lancer likes playing computer games, even though it was implied that he did not like them.

Look Hard: There is a Casper High Ravens flag in Tucker's room.

The way how Mr. Lancer called himself "Mr. Lancer" after winning Doomed seems to be an homage to Butch Hartman's other show, The Fairly OddParents, where Timmy Turner's teacher, Denzel Crocker, sometimes refers to himself as "Mr. Crocker."

Running Gags: 1) Technus giving off "hip" sayings. 2) Danny and Tucker thinking Sam knows nothing about Doomed because she's a girl. 3) Someone saying, "Ignoring that."

When Danny first goes ghost in this episode, the rings that appear vertically circles Danny's body and move horizontally in opposite directions. Usually when Danny transforms, the rings begin at his waist and move vertically in opposite directions. He first did this in "Fanning the Flames."

The name of the park in Danny's town is ironically named "Amity Park."

After it was hinted in "Parental Bonding," it is confirmed that ghosts are capable of having a misty form.

Mr. Lancer has a picture of himself in a dress, which he passes off as his sister.

It is revealed that Mr. Lancer's definition of fun is "seeing a student passing through the portals of Casper High for the last time, brimming with the knowledge that it takes to make it in the outside world."

Look Hard: On Mr. Lancer's desk, there is: 1) A picture of Mr. Lancer and three kids. 2) A picture of Mr. Lancer in a black graduation cap and gown. 3) A picture of Mr. Lancer in a dress. 4) Lesson plans.

The style of the "F" that Mr. Lancer gave Danny on his English test, a blank paper with a huge red "F" on it, is the same style how Mr. Denzel Crocker from Butch Hartman's other show, The Fairly OddParents gives his students F grades.

Look Hard: On the blackboard, there are some trigonometrical equations, including the quadratic formula and Pythagorean Theorem (which is the same equation Jazz was trying to teach Dash in "Attack of the Killer Garage Sale," where Technus was coincidentally the main villain).

Sam seems to be really good at basketball, although in "What You Want," she claimed that she hates sports.

Danny does not catch a ghost in the Fenton Thermos in this episode.

Opener: A kid is running virtually through the computer game, Doomed. He is then zapped by an extremely good player named Chaos. Tucker tries to zap Chaos, but Chaos dodges and hits him. Tucker and Danny try to run, but Chaos throws a grenade and it explodes, giving them both a "Game Over." Danny takes off the Fenton Helmet he used as his game controller in the lab and throws it. It hits the Fenton Portal's "on" button and it opens, and then Technus flies out.

This is the first time that Mr. Lancer appears on the title screen.

References to "Attack of the Killer Garage Sale" were made in this episode.

Dash and Paulina are absent in this episode.

This episode's title screen is the first to feature Danny in human mode.

Main Villain(s): Nicolai Technus.

Featured Named Invention(s): Fenton Helmet.

The 'N' on Technus' suit in the online video game probably stood for his first name, Nicolai.

Look Hard: When you see Danny, Sam, and Tuck chatting online, you can see their screen names. Danny's screen name is "Ghost Boy," Tucker's screen name is "FryerTuck," and Sam's screen name is "Chaos."

Jazz hints that she knows Danny's a ghost in this episode.

Title Screen Caption: "A Lesson In Fear!"

Look Hard: When Lancer is driving Danny home from the video arcade, you can see his license plate, which has four letters on it: LNCR.

Danny learns that he can use his ghost powers in computer and video games.