In your opinion, what would be the abilities and appearance of weapons numbered 3, 5, and 7?

I really wanted to see all the weapons numbered to get an idea of ​​the strength of each one, I think they are all shown so far very creative.

I know that 5 and 3 are with designated people, and 7 is in storage, so I really wanted to see ideas of what they would be like, their appearance and abilities, remembering that their abilities would be kaiju skills or powers that kaijus would use, that's why I think this system is incredible