For Mega Man I-V
After quite a bit of work, modder Zynk Oxhyde has finished his Roll sprite hack for all five Game Boy Mega Man games. The hacks use custom sprite work in addition to the original source material, and Rush has been replaced by Tango the cat, who to date has only appeared in several other games — including Mega Man V. There’s also a new character (Quart, an evil Roll that’s a play on Quint, the evil future version of Mega Man) and some minor gameplay improvements.
Roll is a frequent star of fan hacks, and even got a few official playable renditions. She was a holdover in the mobile version of Mega Man 1, she was playable in the first Marvel vs. Capcom 1 and 2 (albeit as a joke type character) as well as Tatsunoko vs. Capcom, and in Mega Man Powered Up.