@Lmpkio
Now I'm not well versed in the anime godzilla and idk if it actually is a hyper evolved plant thing or if it just looks like that.
Yes, Godzilla Earth originated from plant-based lifeforms and was considered as the "end result of natural selection on Earth". Over 20,000 years later, it became the largest Godzilla to be put in any form of media whatsoever (Easily beating the top 3 biggest Goji's including Marvel's, Hanna Barbera's, and Shin Godzilla respectively) as it had no competition whatsoever, even to the point where it was able to create the smaller Godzilla "Fillus" which broke off via cell division, and ended up growing to the same height of Godzilla from 20,000 years prior, albeit in the present day.
But in the case that it is an evolved plant thing I had some ideas about how you could possibly incorporate a sort of size morph feature. I kinda just thought that she'd be able to absorb and metabolize the suns rays super like really super quickly and use that to grow, I don't know that's just a spitball. Also another thing I though would be cool was if said growth feature was tied to her really scary side, so when she's going freaking mental that's when she starts to absorb light and grow rapidly, like some sort of offensive trigger making her size and power match her incredible fury.
That is definitely a good idea and something Im on board with.
BUT... this is a mecha RP, not necessarily a Kaiju RP. Plus appearantly the square-cube law is in certain effect, due to a comment of the GM stating something about a max height of 40 feet or something before cardiac arrest or something (don't quote me on this)?
I don't think the GM is going to sign off on that idea. It would definitely be cool, but I dunno if it will fit in with the other mechs very well.
Of course, that's where the Mech comes in as essentially a substitute/power-limiter to her rage. Again, I don't think the GM is going to sign off on that idea - as much as I wouldn't mind. However I could be wrong so we'll just have to see what he says about this.