Robots In Disguise was released in 2001 basically as a "filler" line while the next series, Transformers: Armada, was being produced and began as a self-contained universe separate from any of the other existing Transformers Universes.
As a result Transformers: Robots in Disguise toy-line and series was the English version of the Japanese Transformers: Car Robot series and marks the only time that an existing Japanese line was duplicated in the US.
However, as sales rose and demand grew redecorated molds from other lines were brought in until eventually every previous US set was represented and even several cancelled/delayed/unproduced molds from previous lines such as Air Attack Optimus Primal were used.
Due to this mix of molds and combinations of figures RID became one of the most diverse and varied series of figures ever released in the US.
Spy Changer - The smallest size class, standing at roughly 3 inches in robot mode height with very simplistic transformation. This class is equivalent to the Legends Class of today's toy lines.
Basic - Scout-sized figures (roughly 4 inches tall) with easy transformation.
Deluxe - The bulk of the toy line's catalog. Each figure stands at roughly 5 to 7 inches tall and features medium level transformation and exceptional articulation.
Mega - Larger-sized figures that feature more articulation and advanced transformation. Equivalent to the Voyager Class of today's toy lines.
Ultra - Larger-sized figures standing at approximately 7-8 inches in robot mode height. This fits between Voyager and Leader Class sizes.
Super - The largest size class (not counting Fortress Maximus), standing at 9 inches. Features more complex transformation and light and sound effects. Now known in current toy lines as Leader Class.
Toys R Us
2003 Tiny Tins
In 2015 a new line of Robots in Disguise figures was released to coincide with the new animated series of the same name.
This line, as witth the Age of Extinction line, it featured a mix of easy-to-transform figures and more "traditional" figures with multi-step conversions.
This line also introduced a special faction symbol "Shields", which can be scanned with the accompanying Robots in Disguise app to temporarily unlock the toy for use in-game.
Also introduced in this line was the Warrior Class. These figure were a re-branding of the Deluxe class, but simplified and as such with a slightly lower price tag.
Other figures featured in this line were:
One-step and Three Step Changers- these figures were general easy to transform figures that were also price lower than their previous counterparts.
Legion Class- After several limited releases of redeco figures in 2014, the Legion class returnd in full with this line but the Cyberverse branding was dropped, and it had a lower price point than previously.
Mini-Cons – These were single-step transformers that changed into weapons (buzzsaws for the Autobots and torpedoes for the Decepticons) and interacted with some of the larger figures.
This line included a number of clear-plastic accessories which can be pegged into various sockets on their bodies. Some of these accessories could be combined with others to form an "energy animal" such as a big cat for Wave 1, and a shark for Wave 2
The Tiny Titan’s was a new line of blind-bagged Transformers that featured styling similar to that of the Robot Heroes line. Each of these figures feature the characters Robot mode made from a soft plastic and came with a collectible card that had a scan badge that unlocked a randomized bonus power-up item to use on the mobile app game.
This line initially consisted of two waves of 12 figures (see below).
• Optimus Prime
• Ultra Magnus