Toon-Doku threatens to break our brains
Despite thinking we're pretty smart in general, we're just terrible at sudoku. We know that, conceptually, you can use any nine symbols instead of numbers to play the game, but we never wanted to try that because it sounds pretty confusing. It's a lot easier to glance at a line and see that 4 and 9 are missing than it is to see that walrus is missing.
Majesco's Toon-Doku, then, is a puzzle weapon that can be used to melt our unfortunate psyches. Not only does it have picture-based sudoku, where you line up rows, columns, and squares of little dessert icons, but it has custom "distractors" that block the screen with a drawing of your choice. We feel our Brain Age approaching infinity.