This TAS aims to reach the crash that happens in NES Tetris. To best experience it, you will have to patch an existing rom dump to increase the digits on the score display from 6 to 7, which can be found here: https://drive.google.com/drive/folders/1VYmem92eAhcOhl_sLAOkIuFlpeqANx2I. Make sure to select "7digitscore.ips" as that was the patch used. I also used game genie codes (KUYPZS and EXYPLI) to uncap the score past level 29, up to 49, after which the level display breaks once more. You can find a table to convert the level numbers to something human readable here: https://cdn.discordapp.com/attachments/987042025624981534/1001200368086171709/Level_Conversion_Table.jpg
A sequel TAS is currently in the works.