I know you are past the point of needing help now, but I just wanted to say i just got back from gamestop and they sell used copies of Cubic Ninja for $35. Even online.
Yeah nope didn't have it then. xD
I can probably manage to install it on my own though.
I mean I did everything else entirely through an SD card without help so I'm feelin' brave.
I was just told to update by Aurora Wright (The amazing Luma3DS creator <3) so I did. Haha oh well.
It's weird though, some of my CIAs that I installed (That I OF COURSE already have legal copies of ) and some still work.
Pokemon X and Y, Mario Kart 7, and Monster Hunter 4, to be exact. Idea; Wouldn't it be possible to exploit a CIA (one that also works on sysnand) and that way, you can hack your 3DS on older firmwares and then when you update you'll have a CIA that you can always use to re-hack. I dunno just a thought.
EDIT: HEY GUYS CUBIC NINJA IS ONLY $35 ON GAMESTOP'S WEBSITE.
CAN I GET A WHAT-WHAT?