Cyclone

The Cyclone (サイクロン) (also being written as P-3a and Tornado III') is walker, that is another, upgraded version of Tornado with more resemble to Tornado 2. It is created by Miles "Tails" Prower as his major transporting walker, that he used in Sonic Adventure 2.

Description
In Sonic Adventure 2, Tails used Cyclone walker as his transporting vehicle through the whole game. Unlike the previous Tornadoes, it is a monoplane, and carries a large missile launcher behind the single seat. Most notably, the Cyclone can also transform into a walker mode and a car mode. The walker was Tails' main mode of transportation and offense in the game. The Cyclone was armed with a lock-on missile launcher very similar to that of E-102 Gamma's gameplay along with a powerful gun known as the Volkan Cannon. It could also be upgraded with several new features, including the Laser Blaster, which increased the firing radius and missile explosion sizes, the Booster which allowed the Cyclone to slowly float downwards and hover for short periods, and the Bazooka which makes the Volkan Cannon stronger.

There are also multiple alternative costumes to Cyclone, that have been able to download in Dreamcast version of the game. A multiplayer costume for Tails makes it resemble the original Tornado, with different writing on the outside and a red paint job, although it is still identified as the Cyclone. It performs identically to the main costume in the Dreamcast release, but in subsequent versions this rendition is more mobile at the compromise of strength.

Trivia

 * Despite being called simply as Cyclone, it is able to see that, it has the writing "P-3a" and "Tornado III" on it.