Nightmare Fuel / Jimmy Neutron vs. Jimmy Negatron

• There's an area in the warehouse level where bonus points and tools can be found. If you enter it, a bulldog will chase you and try to bite you, causing you to lose health. The bulldog, being a short dog, attacks only at ground level and can be escaped by using the elevator platform to get to higher parts of the area. However, there is a glitch in one part of the area, where, if you stand at the edge of a shipping container, the bulldog will levitate the equivalent of ten feet up and attack you as if you were at ground level. That just ain't right.
• The virtual reality level's loading screen of a bug with huge, menacing eyes◊.
• The platforming part of the Egyptian level where everything beyond the platforms is totally dark and falling off results in falling into a bottomless pit.
• The third mummy-bot room, where the music suddenly becomes far more sinister-sounding, even if the enemies remain exactly the same.
  • The Mummy-bot rooms in general. You're trapped in a large room full of creepy robot mummies that take two hits and run away after the first. The only way out is to defeat them all.
• The level where you're being chased by Herminator and can only run until you gather all the parts to make the burpzooka that can defeat him is also pretty bad, as you have to constantly be running. He always knows where you are and there's nowhere in the level you can hide.
  • Somewhat lessened by the fact that his AI is downright HORRIBLE and you can stay in one place for a while before he finds you.
• The level early on that involves outrunning the flood of water and the "big boulder" Indiana Jones homage are also a bit tense.