http://www.angelfire.com/retro/kingmercury
apparently i have an angelfire account i signed up for in 2000 just sitting there not doing anything, so it's gonna be for rom hacks now. (fair warning: the ads angelfire serves are garbage, use an ad-blocker like a sensible person. probably don't open on mobile if you can help it.)
first up: twinbee (J) cnrom, and super dodge ball (U) 4 player hack
this is a totally on the fly thing i've put together over the last couple days so it's awful right now, and it's gonna stay like this until i get better organized. but those first 2 are available immediately.
post here if you have issues with anything. if you need an IPS patcher, famirom will do that and output the patched file to the same directory. you don't have to do the split, it'll assemble the new file immediately. see signature for a link.