I've just been messing around with it, and, no? It's just a push-straight-down, pull-straight-up clip. I just use a thumb and finger to brace the white body-piece, then use my other thumb and finger to yank out the blade in one motion. For the hammer wave, just line it up and press down slightly until you hear a small click.

I'm getting ready for work so I can't take pictures, but I can post some later today if that'd help.

Mine's not going in that easy, so some pics might help.

I use plastic "spudgers" whenever I am working with stubborn toys

https://smile.amazon.com/Universal-S.../dp/B01DGNCNR0

Will do! It's going to be a minute (or, six hours), but I'll post some pictures later when I'm back home.

In the meantime, I'd maybe suggest partially disassembling your Breaker, so you can see a cross-section of what's going on with the clip. Could be the u-shape of the pink piece isn't open enough and might need to be expanded. Could be the white rod it clips onto has some protrusions, or is misaligned. Might be worth investigating?

I don’t think minor forms like Geikitotsu are even remotely likely...

Well, I think that it’s likely enough if they did plat-form and and Kuuga rising mighty. It is really only a new torso, shoulders, head and right arm.

The reason for those is because Plat Form is a gimmick built into the figure, and because Rising Mighty is little more than a recolour with about three new small parts.

Figure-Rise Standard is very focused on main forms of main riders, and very little else at the moment. Outside of those, we've only gotten upgrade forms and other riders when they're very easy recolours with few new parts, and even then only through Premium Bandai (Genm, Joker, Amazing/Rising Mighty). The only exception to this is Geiz who was retail and obviously much more than a recolour, but even then he shared very many parts with Zi-O and at the time of release he was current series. He's the exception to the rule... and also the one that very routinely goes on sale for cheap compared to the others. There's also Heat/Metal and Luna/Trigger, of course; but again those are by and large recolours with few new parts, and W to begin with is extremely popular.

When we don't even get popular secondaries like Cross-Z or Accel, nor even final forms; I really really wouldn't get your hopes up for a minor auxiliary form of a rider whose popularity is fairly middling, and the demand for the form itself basically non-existent. Would be cool! But... very very unlikely.

Maybe when they run out of Heisei riders. I'd honestly buy anything they'll have to offer from Ex-Aid or Build. If they don't do the secondary forms then I'll buy another Ex-Aid and make my onw pieces if I ever get a 3D printer.

Also, figure out the problem with the gashacon breaker. It's actually too loose, not too tight.

I know this isn’t toku, but I’ll probably get figure rise Asuna from SAO if they make a Kirito.