The Anime Channel in Deep Cover Gecko. After a few levels with heavy exploration and a bottomless void underneath your feet (especially the Mythology Channel), this level instead gives you three straightforward routes, each one leading to one of your objectives. The most that's being tested here is your abilities in combat (fitting for the level's basis on shounen anime), but apart from the Japanese schoolgirls on one route, the enemies aren't exactly hard to kill.
The Army Channel from the same game has very simple objectives in general, which is a massive relief since the rest of the Lake Flaccid worlds suffer from terrible Difficulty Spike.
Fanon: The games’ fanbase nigh-universally agrees Gex's last name is Gecko, to the point where it’s commonly mistaken for canon. "The name is Gecko, Gex Gecko."
Hilarious in Hindsight: In the Circuit Central levels of Enter the Gecko, on of Gex's one liners is as follows:
Gex: Boys! TRON didn't work once, it's not gonna work twice!
One of the taunts against Rez in the first game was "What do you mean Darth Vaderis my father?". In the second game, Rez declares himself to be Gex's father.
"It's tail time!" Explanation In Dunkey's video on Gex: Enter the Gecko, he thought Gex was saying this line a bit too much, leading to Dunkey fans mocking it as well.
"This is like (action) at (celebrity)'s house." Explanation Also from Dunkey's video, this was popularized as a snowclone for generic Gex quips due to how many lines of his match that template, or at least come close to it.
Narm Charm: The aforementioned one-liners. While intended as the pinnacle of attitude, many of Gex's quips rely on creaky pop culture references that have only grown more dated with time, often adhere to a hit-and-miss "X meets Y" formula, and are thrown out with no particular rhyme or reason. Younger fans have knowingly embraced them as complete cheese.
Porting Disaster: The developers of Gex: Enter the Gecko were unfamiliar with the N64's hardware and it shows. Not only were several lines of dialogue removed, so were a large chunk of the levels, with a single unimpressive Titanic themed level replacing everything. The port also lacks an intro cutscene, an ending, or even a title screen. It seems they mostly got the hang of things by Deep Cover Gecko, as that game has no cut levels, has a proper title screen, and replaces the FMVs with new in-engine cutscenes.
Sequel Displacement: The 3D games are a lot better known than the first game. Much of the blame for this can be pinned on it being originally exclusive to a failed console and being ported to more successful hardware right when the 3D craze was taking off.
A variation of the Indiana Jones theme is used in the appropriately themed bonus level: Aztec 2 Step.
The In Drag Net bonus level theme sounds remarkably similar to the famous "Bad Boys" from Inner Circle.
When riding a rocket in the Rocket Channel space level, a variant of the Star Wars opening theme plays. Upon arrival, a variant of the Star Wars battle theme plays.
A variant of Popeye the Sailor's theme is played while riding a boat to the castle dock in "Fine Tooning".
The intro to the second space level, "Pain In The Asteroids", is very similar to the opening of 2001: A Space Odyssey... before devolving into the theme of The Jetsons.
The Umpire Strikes Out and Pain in the Asteroids in Enter the Gecko for being rather dark and putting you on a time limit that has to be refreshed with air stations, as you're in space. They do cut you a break however, in that their hidden remotes are easy to find and in plain sight, respectively.
Mythology Network from the PS1 version of Deep Cover Gecko, due to its overly long length and confusing layout, collapsing platforms that hover around in awkward movement patterns, and being rife with bottomless chasms that are easy to fall into from the slightest mistimed jump.
The Buccaneer Program (also from Deep Cover Gecko), for forcing Gex to climb through several traps just to reach the main deck where most of the remote controls are, making for a horribly linear and torturous experience.
There’s also Fairytale TV in Deep Cover Gecko, which centers around climbing a giant beanstalk, and it’s very easy to fall off and lose progress.