If you use hekate to boot, you need the sigpatches from Joonie. You can find the link to the sigpatches at the latest Kosmos release.
Thanks for the reply!
I don't know if we're making progress here, but I kept googling and found a post with someone like me that needed to put the keys file in the root of the SD card, I did that and now when I try to launch the game from tinfoil it won't say "unable to start software", but now I'm getting error 2155-8007.
I've read about that error and it seems like my console failed to check for the game online or something? Anyway, is there anything I should try to bypass this?