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.

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.

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.

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.

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.

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.

All three ports of Tornado Outbreak naturally support the game running at high framerates up to 60 frames per second. On actual hardware, the framerate is artificially capped to 30 frames per second. The primary reason behind this imposed restriction was likely due to performance issues.

Tornado Outbreak uses an in-house engine that incorporates a heavily modified version of RAD Game Tools' Granny 3D SDK. Unlike most video games that make use of the Granny 3D SDK, assets are compressed into one ZLIB archive that uses the .bgw extension. The core engine itself is written in C++, but also makes use of Lua scripting as well.

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

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.

A sprite for the Wii Nunchuk exists within the game's files. The purpose of this sprite presumably relates to the cut Combo Moves mechanic, a mechanic in which players would've initially made use of the Wii Remote and Nunchuk combo to maximize their destructive potential. While Combo Moves were cut from the final game, motion controls would ultimately be reworked into Totem Battles.

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.

The location for Ringling Village is loosely based off of a combination of London, the capital of England, and Wiltshire, a county from southwest England where Stonehenge is located.

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

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.

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

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.

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 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.

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.