Seiki required this topic and I have no idea for a better title. I have no time to type all so my first attempt are Flare Dragaon.
EDIT: I have changed the original title in to the one suggested by BakuganSensei. Also overviews of Van Falco, Gran Panzer, Dio Sivac have been done.
Flare Dragaon

^normal ^Golden Dragon


^Silver Dragon ^Special Color FullMetal Version

^BakuMetallic (front left)

^BakuMetallic Silver, Gold, Copper (from left to right)
Color: Shiny pearl red + white highlight (normal)
Dark brown with gold spark + gold highlight (Golden Dragon)
Black with silver spark + silver hightlight (Silver Dragon)
Pearl Red + gold highlight (Special Color FullMetal Version)
Metallic red (BakuMetallic)
Metallic gold (BakuMetallic Gold)
Metallic silver (BakuMetallic Silver)
Metallic copper (BakuMetallic Copper)
G-Power: 500, 520, 540 (normal)
540 (Golden Dragon)
600 (Special Color FullMetal Version)
Convert Parts: Flare Metal Cross*2, Flare Normal Sole*2 (normal)
Van Light Normal Cross*2, Black Destroy Metal Sole*2 (Golden Dragon)
Gold Flare Metal Cross*2, Gold Destroy Metal Sole*2 (Special Color FullMetal Version)
Other feature(s): None
Difference(s) between demo and real toy: None
Destroy Munikis

^normal ^Silver Dragon

^BakuMetallic (back left)
Color: Shiny black with silver spark + red highlight (normal)
Black with silver spark + silver hightlight (Silver Dragon)
Metallic black (BakuMetallic)
G-Power: 500, 520, 540 (normal)
540 (Silver Dragon)
Convert Parts: Destroy Normal Cross*2, Destroy Metal Sole*2 (normal)
Destroy Normal Cross*2, Black Destroy Metal Sole*2 (Silver Dragon)
Other feature(s): None
Difference(s) between demo and real toy: Demo has green eyes, real toy has blue eyes
Kilan Leoness

^normal ^Golden Dragon

^BakuMetallic (back right)
Color: White + light blue highlight (normal)
Dark brown with gold spark + gold highlight (Golden Dragon)
Metallic silver (BakuMetallic)
G-Power: 510, 520, 560 (normal)
560 (Golden Dragon)
Convert Parts: Kilan Metal Cross*1, Kilan Normal Cross*1 (normal)
Black Kilan Metal Cross*1 (Golden Dragon)
Other feature(s): Metal belt near the magnet, poses (which are extremely random, shown below)



^Pose of Fang, Pose of Claw, Pose of Snowfield (from left to right)
Pose of Snowfield in real Brawl

Difference(s) between demo and real toy:
Van Falco

^normal ^Silver Dragon

^BakuMetallic (front right)
Color: Pearl dark green + white highlight (normal)
Black with silver spark + silver hightlight (Silver Dragon)
Metallic green (BakuMetallic)
G-Power: 510, 520, 560 (normal)
560 (Silver Dragon)
Convert Parts: Van Light Normal Cross*2, Van Metal Sole*2 (normal)
Destroy Normal Cross*2, Black Destroy Metal Sole*2 (Golden Dragon)
Other feature(s): Jumping (by hitting the Gate Card with its tail like Ingram)
Difference(s) between demo and real toy: Tips of the wings (feather) of demo has highlight, those of real toy doesn't
Gran Panzer

^normal ^Golden Dragon
Color: Brown + light blue highlight (normal)
Dark brown with gold spark + gold highlight (Golden Dragon)
Metallic silver (BakuMetallic)
G-Power: (normal)
560 (Golden Dragon)
Convert Parts: Gran Metal Cross*2 (normal)
Black Gran Metal Cross*2 (Golden Dragon)
Other feature(s): 4 metal foot
Dio Sivac

^normal ^Savac Gold Version

^Dark Clear Version

^BakuMetallic Silver, Gold, Copper Version(from left to right)
Color: Black + lime green, dark blue highlight (normal, Savac Gold Vesion)
Translucent Black + lime green, dark blue highlight (Dark Clear Version)
Metallic gold (BakuMetallic Gold Version)
Metallic silver (BakuMetallic Silver Version)
Metallic copper (BakuMetallic Copper Version)
G-Power: 580, 590, 600 (normal)
600 (Savac Gold Version)
620 (Dark Clear Version)
Convert Parts: Dio Metal Cross*2 (normal, Savac Gold Version, Dark Clear Version)
Other feature(s): Metal Fangs, Savac (the Printed G-power of it can add to any of your Bakugan)
Savac color: Silver (normal, Dark Clear Version, BakuMetallic Silver Version)
Gold (Savac Gold Version, BakuMetallic Gold Version)
Copper (BakuMetallic Copper Version)
Savac G-power: 200 (normal, Dark Clear Version)
220 (Savac Gold Version)
Difference(s) between demo and real toy:
Saint Aquas

^normal (Occupy Mode) ^normal (Double Stand Mode)


^Golden Dragon (Occupy Mode) ^Silver Dragon (Double Stand Mode)

^Blue Metallic Version
Color: Light Blue + white highlight (normal)
Dark brown with gold spark + gold highlight (Golden Dragon)
Black with silver spark + silver hightlight (Silver Dragon)
Metallic blue (Blue Metallic Version)
G-power: 200 (normal, Double Stand Mode)
Convert Parts: Saint Normal Cross*2, Saint Metal Sole*2 (normal, Silver Dragon)
Saint Normal Cross*2, Gold Saint Metal Sole*2 (Golden Dragon)
Other feature(s): Double Battle System
Difference(s) between demo and real toy:
Blan Shoult
^normal (Demo)
Color: White + gold highlight (normal)
G-power: 540, 580 (normal)
Convert Parts: Blan Cross*2 (normal)
Other feature(s): Shock Regulation System (in which force at the lower part can be absorbed and transfer to the upper part)
Difference(s) between demo and real toy:
RemarksThe name of the Convert Parts (Cross, Sole) are according to the Cards.