Looks like maybe three different series are represented in the first pic, if not more. You've definitely got a mix of Heisei-era Godzilla monsters - Battra, Rodan, and two Mothra larvae. The SD figures in the bottom row are Antlar and Baltan from Ultraman, while the one above Rodan looks to be Black King. The stubby four-legged reptile looks vaguely familiar - maybe a video game thing? The bird monster miiiiiight be Birdon, or a similar kaiju from a later Ultra series, and the two humanoids look to be kaijin from the original Kamen Rider, since they have the trademark Shocker belts on their waists. Not enough time to do more precise IDs on those, sorry.
I only recognize the middle robot, which is Getter Dragon, and might be a bootleg vending machine toy judging by the loop on his head.