Could also ask why he didn't use level billion. Or why most Riders don't just start out with their final form right away. Go down this line of questioning and you'll find no end :p

Base form go brrrrrrrrrr

Maybe the suit was sent for alteration?

I have always explained this to myself by the fact that the final forms exhaust the user and therefore they are saved for the finisher.

It's such an easy and sensible idea to implement, but few really do -- OOO and Kuuga are the only examples that really come to mind.

But isn't Zombie Gamer also his more recognizable form?

It's also White and Silver, which makes it very easy to get dirty during filming or from being moved out of the Toei warehouse it's been stored in for the past 5 years.

It?s definitely his more distinct form but I see level 2/0 in merch etc more. Maybe that?s a perspective thing tho

I think I can answer MatrixBeast's question. Remember that Emu reprogrammed Dangerous Zombie during Maximum Mighty's debut where Emu filled Genm's Life Gauge to full. From what I had seen, that reprogramming was permanent in the next usage of Dangerous Zombie Gashat, especially during Kuroto's run with his Gamer Driver. Even Motos Bugster lost his bike permanently after Emu reprogrammed him and that stuck in the entire of Motos' next appearances.

Objectively, Dangerous Zombie absolutely provides Kuroto more firepower than using solely his Proto Might Gashat or its Level 0 variant. The catch is, if you read Dangerous Zombie's suit description out there, you can find that the suit was tailored-made to be an invincible suit when the Life Gauge is at 0. But with Emu reprogrammed Dangerous Zombie, with a full Life Gauge back, the suit became nothing more than a flimsy skin or armor for Genm to use. This is the reason why we saw Genm almost took a OHK from every single attack in the series. Yes Genm in Level X-0 had more statistical power up but that gave him a pitiful defense in return.

This was not a problem when Kuroto had 99 lives in the series that he could burn up with no problem. But in these future installments, where Kuroto only had a single life and even becoming a much less durable Humagear later on, using a Gashat that provides less protection and survivability is ill-advised. This is even coming from Kuroto who quote-unqoute the Game Master in this franchise. Even Kuroto didn't use back those lower-level Gashats when he attained Genm Musou.

RKF Grease is known for breakages on his hips, right? I vaguely remember it but wasn't able to find specifics right now so I was wondering if anyone knew better.

On that topic, are there any other Toku toys known for breakages?