Mr. Single Game Arcade emulator for Nintendo DS, Copper, brings us Mr. Do and variants, if you do own the appropriate ROM images, which are not inculded with the emulator.
Supported ROMs:
Mr. Do!
Mr. Do! (prototype)
Mr. Do! (Taito)
Mr. Do! (bugfixed)
Mr. Lo!
Mr. Du!
Yankee DO!
Thanks to http://www.nintendomax.com for the news.