User:TX55/Sandbags 19

Those are the characters who have more than one official alt mode.

Category 01
Very Prominent
 * Triple Changers
 * Horrorcons
 * Doubledealer
 * B'Boom
 * Jetstorm (BW)

Category 02
Prominent
 * Sixshot
 * Greatshot
 * Quickswitch
 * Sixknight
 * Dreadwing (G2)
 * BB
 * Dreadwind (RID)
 * Gigant Bomb
 * Optimal Optimus
 * Energon Scorponok
 * Cybertron Megatron

Category 03
Definitely not Triplechangers
 * Tracks
 * Omnibots
 * Transmetals - Most of them just have a "Transportation mode", except for Optimal Optimus.

Base changer
Um, they just have a base mode.
 * Metroplex
 * Trypticon
 * Fortress Maximus
 * Grand Maximus
 * Brave Maximus
 * Scorponok

Leader of Scramble City-type combiner teams

 * Silverbolt
 * Hotspot
 * Scattershot
 * Motormaster
 * Onslaught
 * Hun-Gurrr