How to get: Ro Cubes

I just want to know how to get Ro Cubes of any type. I don't really care what type, I just want to get a bunch of them. And it should not include doing events and such, I mean that there might be other ways, I just don't know. Please tell me there's another way than doing events.

SUC GARA, good luck .__.

Ro Cubes are intentionally rare, and honestly, overhyped. Just figure out what bot you want and go buy it in the shop (or, if it's a Gara-bot, learn to play and then choose a shop bot). It's actually pretty rare that a Ro Cube will give you something that you'll use; I've gotten a total of 21 Ro Cubes from events, and I only use one bot out of them on a semi-regular basis (and it's an Izuna, at that).

Well, there are other ways, however they are pretty expensive and nothing grants you that you'll get a really awesome bot. I luckily got 2 AIR bots that I use, but they are event ones, so... On the bazaar, I already saw 200k and 300k Ro Cubes, so it's not worth it... If you want to have LOTS and LOTS of them... Forget it...