Yup. Raiden Kyoryujin only has a sound because of a button on Ptergodon, and Western Pteraiden-oh has no way to make a new sound(though there wasn't a new sound in the show).

Wow. For a collection gimmick, they're seriously making it pointless.
"Let's have kids collect all these toys then only make 2 toys actually compatible with them!"
At least KR's collection gimmicks worked around it by having a universal scanner or having the electronics operate from the toy you're collecting...

I'm hoping Gabuchibi will be able to recognize them. He has to do those armor up modes after all.

i assume by gabuchibi you mean the powerup item for KyoryuRed Carnival?

usually sixth ranger gear gimmicks is limited because it's cheaper and less toys to buy like me.

Yeah. I think it's name was Gabutyra de Carnival? Gabuchibi is easier to remember.

heres another one that actuall shows everything it does

http://www.youtube.com/watch?v=HzoegLVuDLk

this one has the Gaburichanger as well though

The same is true of the KR gimmicks too. Diend couldn't read the cards, Birth couldn't use the OOO's medals, Beast can't use the Wizard rings, etc. The secondary Riders/Sixth Rangers are always like this.

Diend's was a travesty.
But Birth's canonically never used anything beyond Cell medals, and at least Beast's humorously referenced that his couldn't work with Wizard's rings (Though, I'm not defending it. Such a waste of potential).

To be fair, Gabutyra de Carnival appears to read batteries too, going by the magazine showing how it makes different forms (so, different sounds, I'm assuming) depending on what combination of batteries you put in.