I've played Rockman a long time ago, too long to remember but I'd still try this if you had a good game going. There are a lot of sites offering free resources, and ripped sprites so it shouldn't be too hard to find those things. (Even if you want new sprites / music, the free ones provide structure and give you an idea of what you need)
Also I have an idea for a game. It's called Geek Roulette.
Rules: Turn off firewall and anti virus. Visit warez site. Take turns downloading until PC dies.