I am looking for a JY-120 45 in 1 cart. I can offer cash, trade or a combo of both. Let me know!
I suppose you want a copy of Cheetahmen 2 and Little Samson as well, eh?
Seriously though, that cartridge is extremely rare. I haven't been able to track it down anywhere. Buying a Super Nintendo or RDP and a copy of Super Mario World is probably the better option.