Setting the aspect ratio to 4:3 and replaying the credit segments will display both the Wind Warriors and Fire Flyers thanking the player for purchasing and completing the game.

Zephyr, the main character, has an unused animation that consists of him wiping both of his shoulders.

Zephyr has an unused fumble animation that was intended to play right after the player stopped controlling the tornado.

The game's cutscenes were animated using Adobe Flash and compressed through Bink Video.

Despite not having a physical model, unused animations for the size 33 tornado exists within the game's files. Since no physical model is present for the size 33 tornado, the only way to properly display the unused animations is by swapping the tornado animations.

The Xbox 360 and PlayStation 3 ports of the game feature a group of wandering Elvis impersonators in the map High Roller Blowout.

By earning a gold medal in a handful of levels in the game, a blooper reel showing botched takes of cutscenes throughout the game is unlocked to view during the end credits.

Completing the game with all the rock and water elementals collected will unlock an alternate ending that involves Zephyr, Nimbus, and the army of Wind Warriors returning to their homeworld.

One early concept for the game revolved around the player constantly growing the tornado. If the player stopped controlling the tornado, it would simply shrink and dissipate.

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.

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.

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.

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.

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.

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.