The Adventures of Jimmy Neutron: Boy Genius Season 1 Episode 22

At some point in the episode, Carl, Jimmy, and the leptictidium find a cluster of diamonds. But somehow, the diamonds are already cut. Raw diamonds would have more irregular shapes, so how could the raw diamonds they find be cut?

When Hugh enters the kitchen, Judy is on the floor after she spilled the berries, so Hugh uses the Quantum Replay to clean them up. When Judy is standing again, the berries stop at the rim of the cup. But a few shots later, the berries pile over the rim.

At the end of the episode, Jimmy lures a T-rex into shattering a diamond, which causes it to explode into pieces. However, immediately afterwards, the diamond is in perfect condition.

When Jimmy, Carl, and Sheen are sent to the past, in the background, you can see the same type of Spinach plant Jimmy transformed Ms. Fowl with in the episode "Substitute Creature."

Jimmy, Carl, and Sheen must have landed in Europe, because the leptictidium's ranges were in the Europe area.

Libby has her new look in this episode, too, even though it is no introduced until "Beach Party Mummy."

In "Hypno Birthday To You" Jimmy claims that he cannot afford a new chemistry set. How did he afford the diamond needed to power the original Quantum Replay? However, who said he used one in the first place? It's never stated.

When the T-Rex comes out from the trees, you can see Jimmy and Sheen screaming, but you cannot hear them.

The invention was introduced twice. The invention was used in "Party at Neutrons" as a time accelerator.

At the beginning of the show, Jimmy tells his dad that the QR 9000 only works at the objects you point it at. Later, when Hugh is in parachute class, he points it forward and still flies up.

The plane obviously continues moving forward after Hugh jumps from it. When he flies back up, however, the plane is right above him.

When Hugh zaps Jimmy, Sheen, and Carl to the age of the dinos, Sheen can be seen wearing a hat and a cape, as well as holding a cane. But when they arrive at the jungle, he's back to normal.

When Jimmy, Sheen and Carl were sent back 200 million years, they said they were in the Late Cretaceous Period. However, the Cretaceous Period lasted between 142 and 65 million years ago. They were really sent to Late Triassic Period.

When Jimmy, Sheen and Carl were sent back 200 million years, they met a leptictidium. However, the leptictidium only lived from 50-40 million years ago.