I see. ANd here I thought DE-9 controllers were universal at the time. ike USB controllers we have today.
At the time my country was still catching up to other countries.
Having a computer was still considered as luxury.
My dad managed to have one because it's related to his work job.
The DE-9 connector was there, but the peripherals and accessories that using it were rare to be found.
I was so used using up button on keyboard for jumping in platform games so it's kinda take a time to adapt when later platform games have dedicated jumping button.