Calcing for Hong Kong 97.
Chin is able to fire off projectiles that cause his enemies to explode.
The image is lifted from a nuke, so I'll include an end in case it's nuclear.
Chin is represented by low rez images of Jackie Chan elsewhere, so I'll use his height of 5'9" or 174 cm. 174/140=1.24285714286 cm per pixel, so the explosion is 137.957142857 cm.
((0.00137957142857/0.28)^3)/1000=1.1960752e-10 megatons, or 500437.86368 joules. 250218.93184 if we don't want to use nuclear. 9-B. I think it's less than pulverizing a human would be anyways but oh well.