Does the Ranger Keys look really big considering its in the background?

It's probably just the camera.

you guys do remember the megaforce is going to heavly using the card gimmick right so we going to see ranger card changes instead of ranger key changers.

Not really sure what to make of this yet since we can't actually see which ranger keys they are (other than its a team that involves a green ranger). They could just end up being base decoration like the MMPR suits were in Zeo.

Ranger Keys?

Well, Saban did say Gokaiger fans would be very happy about MegaForce, so I think this is it.

i look it same cave base in proo 's series

YEEESSSSSS!!! They better not be joking around about using these.

I'm looking forward to Super Megaforce more than Megaforce in terms of things I want to buy. I'm hoping for a slimmed down, cheaper Gozyujin that doesn't have the spinning arms gimmick and now I think I'd buy a Super Megaforce Morpher and Ranger Keys.
I've always liked the Mobirates but didn't want to go through the trouble of trying to choose/find/buy all the various Japanese Ranger Keys.

I don't really know now what to make of Megaforce now with the revelations that ranger keys exist during season one. Maybe it will be a Zeo sequence with a better HQ just below there's developing secret ranger tech or maybe it's a ranger power archive as that ever power ever created using the morphing grind get archived there, this would also explain how lost powers like Ninja Storm and the original MMPR powers get back to the rangers is through these archived ranger keys.

If BOA is indeed going to use Ranger Keys here in the US, I hope they are compatible with the Japanese version, otherwise it's just pointless.