Crouch Scrolling Glitch (Castlevania (NES))
Channel: InfoManiac
Date: 2020-08-15

Edit (17 December 2022): Displaced Gamers has uploaded an excellent explanation video here: https://youtu.be/wd18YNZB0D4

By alternating between right and down-right (or left and down-left) every other frame, you can glitch out the level layout. I'm not sure why this happens, considering the first time I ever played Castlevania was three hours ago.

I haven't been able to find any documentation of this glitch online, so I'm making a video to document it. I have a BizHawk input file of the glitch happening. You can find it here: https://cdn.discordapp.com/attachments/185110181338808320/744307790541094992/Castlevania.bk2

Update: Some work on finding applications for this glitch it being done here: http://tasvideos.org/forum/viewtopic.php?p=498506#498506

I'm also putting together a playlist showcasing various applications of this glitch. You can find it here: https://www.youtube.com/playlist?list=PLuo3NIZ9okc7VxNjXiSr2fSU_gC62_joM


Update 2 (12 December 2020): A new TAS utilizing this trick has been published (http://tasvideos.org/6941S.html).