While Konami hasn't been putting out quite as many games as they once did back in the 90s and early 2000s, there's no denying that they are still one of the biggest developers and publishers within the industry, having a plethora of iconic games in their vast catalog. While a lot of their games are easy to jump into and enjoy, considering just how long Konami has been around, it's more or less inevitable that at least a few of their games would end up being extremely challenging, and sometimes, downright brutal in their overall difficulty.