A closer look
Speedrunners don't just break games; they categorize their destruction with academic precision. The Backwards Long Jump (BLJ) belongs to a taxonomy of glitches known as collision failures. Because the Nintendo 64 engine didn't properly cap negative velocity, Mario builds infinite backwards momentum. When trapped against a stair tread, his speed value overflows, allowing the game's position-updating logic to violently snap him through the geometric bounds of the map. It's not a random error, but a reproducible exploitation of the specific mathematical blind spots in 1996 coding.
