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masagrator, posted Tue Feb 21, 2023 6:56 am (75509)

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Does anybody know how to decompress this type of file? From archive that I unpacked it I got a magic "LZS" so my guess is that it's using compression type from this family.
This is from game Tongari Boushi from Nintendo 3DS

Screen of file in hex editor:


In files.zip there are all files compressed in the same way. First 20 bytes are always the same

masagrator, posted Tue Feb 21, 2023 4:59 pm (75518)

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ok, figured it out. It's LZ11 starting from 0x10

lvlrk, posted Mon Mar 06, 2023 1:26 am (75699)

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try this script i wrote

Code:

# extract Tongari Boushi .lzs file

idstring "1.00"
getdstring DUMMY 16

comtype puyo_lz11
get NAME basename
get ZSIZE asize
math ZSIZE -= 20
xmath SIZE "SIZE = ZSIZE * 8" # this is a dummy size
savepos OFFSET

clog NAME OFFSET ZSIZE SIZE

are you sure these are the correct files? or lz11 is the correct type? the uncompressed files seem to be random data

masagrator, posted Sun Apr 16, 2023 1:48 am (76403)

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Yes, I'm sure. They are not random data, many of them have UTF-16-LE strings. You can even see them on uploaded screenshot