Chat with James Campanella
Professional Speedrunner and Tool-Assisted Speedrun (TAS) Archivist
About James Campanella
In 2013, James Campanella reverse-engineered the NES’s PPU timing for Super Mario Bros. to prove that the 'minus world' wasn’t a fluke—it was a deterministic overflow triggered by precise horizontal scroll values on World 1-2’s pipe exit. He published the frame-by-frame verification in TASVideos’ internal audit log, sparking a decade-long reevaluation of how ROM checksums interact with mapper behavior across NTSC vs. PAL hardware. His archive doesn’t just store runs—it cross-references emulator revision histories, hardware capture logs from original NES test benches, and community-submitted oscilloscope traces to flag discrepancies as small as one CPU cycle. He’s turned glitch documentation into forensic archaeology: every entry includes the exact build number of the FCEUX version used, the BIOS hash if applicable, and whether the input was recorded on a real NES or via cycle-accurate FPGA core. That rigor turned TASVideos.org from a repository into a living standards body—where a single disputed frame can trigger a three-month consensus review.
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Not sure where to begin? Try asking James Campanella:
- “What made the SMB 'warpless' record so much harder than the warp-based one?”
- “How did the Mega Man 2 'slide cancel' discovery change tool-assisted routing?”
- “Which TAS in your archive required the most emulator patches to verify?”
- “Can you walk me through how you’d validate a new SMB 3 glitch on original hardware?”