[Enchilada645]

Quote:

Originally Posted by Kamen Rider Die

I was thinking the same thing, and no, it doesn't seem like Trial's ever been used as a base form. (Xtreme, same deal I think.) Trial's a power-up for Accel, despite being its own Memory. I'd wonder about, like, Engine though. Is there any reason Engine can't work in the Driver?

True, the only time they go straight to Xtreme is in the finale, but they also have to start the transformation into Base W first.

Engine... I'd say it's the reason why the other Memory Gadgets won't work for transformations when being used in the Drivers. It's more a Pseudo-Memory than anything, good for a finisher, but not a transformation.