Ever wondered if anyone could find a way to convert roms for one system to play on another? This guy has done so with a few NES games including Mega Man, Castlevania, Contra and a couple of others.

I've only run them on Yame so, I can't say how well they'll play on any other TG16 emu but, the Mega Man port seems nearly flawless.

Here's the link to his page...

http://pcedev.wordpress.com/

Just go to "downloads and links" from there to get to the games.