ok so i just beat game on brainiac mode. (of course using glitch) end screen really funny with the cake and stuff. not really worth it. because the ACHIEVEMENTS ARE STILL BROKEN FOR ME! but anyway if you wanna see it here it is:
Damn. Just, damn. Well done! I'm genuinely impressed!
I think the cake ending is the Smart Boi Spongebob achievement. My achievement list isn't broken at all, but I cannot seem to pause the game with the space button for some reason. I'll try to do the challenge myself so I can confirm which achievement this is.