A YouTuber called SethBling just combined Super Mario World and Flappy Bird. Why? We don’t know. But it’s how that’s truly amazing. Before you roll your eyes thinking it’s a simple mock-up or sprite switch, it turns out the process is way more involved than you might expect: SethBling actually managed to run Flappy Bird inside of the Super Mario World game itself. No, we’re not talking about an emulator either: he literally coded Flappy Bird onto an old-school cartridge-and-console setup, using nothing but official, consumer hardware. To do so required exploiting numerous glitches that have been discovered by the speedrunning community in the…

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