The Stone Stomper has two unused pouncing animations that were intended to play during the Stone Stomp tutorial segment in Carnival Carnival. The first one, being a regular pouncing animation and the second one being a cannonball pounce.

The map Ringling Village features a statue of American writer Edgar Allan Poe. The crow standing on the statue is most likely a reference to The Raven, an 1845 poem written by Poe.

It is possible to grab and throw Nimbus with the tornado via modding. Since he doesn't have a death animation, his model will be stuck in an A-pose.

The ability to strip the clothing of certain humans was originally intended to be used for a side mission for Military Mayhem. The side mission in particular would've involved Zephyr pantsing the wandering soldiers in the first zone of the level.

Some of the tornado's sound effects were created by altering the sound effect of a tiger's roar.

As the game was originally intended to be a Wii exclusive, the colors for the tornado were colored coded after the colors of the Wii Remote's cursor. Player one, having a blue tornado while the second player having a red tornado.

The design for the fat horses is based on the horse Grane from the 1957 Merrie Melodies cartoon "What's Opera, Doc?"

The location for Ringling Village is loosely based off of Wiltshire, a country from South West England.

The player can unlock an piece of concept art of what is assumed to be the inspiration for Tornado Outbreak; a poorly modeled tornado with a high polygonal model of a cow.

A sprite for the Wii Nunchuk exists within the game's files. The purpose of this sprite remains unknown, but it can be assumed that it was intended to be used during the Totem battle segments. The player would've rapidly shake the Nunchuk until the Totem's arm was destroyed.

Two early names considered for the game during development were Tornado Alley, and Zephyr: Rise of the Elementals. The game was first pitched to Warner Bros. Interactive under the Tornado Alley name in July 2006. These early design documents, alongside the documents for the unproduced Dirty Harry: Excessive Force, were later trademarked in 2008.

In both the regular and alternate ending to Showdown With Omegaton, a Wind Warrior can be seen holding his helmet.

The game runs on a modified version of the Granny 3D engine, a game engine developed by RAD Game Tools. Unlike most games that run on the engine, models, animations, maps and textures are compressed in a ZLIB archive.

The Xbox 360 port of the game is the only version that natively supports 60 FPS. The framerate on actual Xbox 360 hardware is capped to 30 but can drop down to 9 FPS, because of the render distance and additional lighting. When emulated, the game maintains a steady 30/60 FPS depending on what's going on. Cutscenes, subtitles and loading screens move too quickly, and there is major slowdown when the game is running in 60 FPS. This is noticeable in the sixth level Ringling Village and the final level Showdown With Omegaton.

In 2009, audio engineer and programmer Scott Bilas released the Wwise project file for the game. While the project itself doesn't include the original .wav files, it's possible to reimport them within Wwise.

By swapping map files, it is possible to play the first two single-player exclusive levels in co-op mode. The first level, Roadside Destruction, plays like a regular co-op level while the second level, Chicken Con Carnage, requires player one to take control of the tornado while the second player grabs the Fire Flyers. This mechanic was eventually reused during the Vortex Race and Totem Battle segments after completing all zones.

By modding the game, it is possible to completely disable the blue screen of death glitch. The outcome varies depending on the level, and in most cases the game either crashes or becomes softlocked, but some unusual results can still come out of disabling it. In the final zone of Chicken Con Carnage, restarting the level with the dialogue popup on screen will result in Nimbus sliding away from the camera while idling.

The player can unlock concept art for a completely removed level known as Drive-In, an early version of the map Roadside Destruction. While the map was entirely scrapped, music for the level was reused in Roadside Destruction and the Training Campground segment in Chicken Con Carnage.

An E3 2009 developer walkthrough revealed that the game had a removed mechanic called advance chain collecting, which completely removes the smoke, sparks, and sizzling sounds emitted from objects containing Fire Flyers. As a result, this changes the game's difficulty. It is possible to enable this mode in the Wii version of the game via modding.

Judging by the Tokyo Metropolitan Government Building featured in Showdown With Omegaton, it's assumed that the level's location takes place in the center of Shinjuku City.