most of these guys on the top Two shelves from Bandai's Soul of Chogokin line, they're about 8" to 9" tall and made mostly out of die-cast metal.
The bottom shelf is an eclectic mix of cool looking mechs from various shows...but we'll get to them later.
Shelf one robot roll call From Left to Right : Great Mazinger, Raideen, Getter Liger, Getter Posiedon, Battle Fever Robo, Mazinger.
Robot Roll call shelf Two : Grandaiza w/ UFO and 3 Speizer set, Doublas, Aphrodite X, Garada, Gaiking Dragon & Vehicles, Gaiking robot.
Shelf 3: 1/100 Metallic Shiki, 1/100 Zeta Gundam, 1/35 Scopedog Red Shoulder Customs (x4), Revoltech Hiraku and Focker Valkyries, 1/35 and 1/18th Strike Dogs and a 1/35 BloodSucker (Votoms), SOC spec Xabugle.