BAS (File Format)
BAS (Binary AI Speed) is a filetype found into competitions, specifically found as AIParam.bas; it changes the speed parameters for the Mario Kart Wii's in race CPUs. AIParam can be added into any track to make more challenging gameplay in offline versus races. When this file is not present, the parameters are controlled instead by kartAISpdParam.bin, found into Common.szs.
BAS files are only 20 bytes long, containing 5 floats:
|0x00||Float|| Speed parameter. Higher values make faster CPUs, but after a limit, |
the speed won't change anymore and it will use the maximum allowed.
Negative values make the CPUs stop when they reach their maximum speed.
The first ever Nintendo competition contained a BAS file that was 16 bytes long, missing the last float.
The following tools can handle BAS files: