Step 1: Learn to program.
Step 2: Plan it out.
Step 3: Program it.
Other than that, you're going to have to be a heck of a lot more specific. And I really hope this isn't a masked "Will someone make a megaman type battle system for me?" post.
Blade, I've seen numerous posts about you. Stop begging people for source code/their programming, learn how to do it like Foomer said, and then do it yourself.
Step 2: Plan it out.
Step 3: Program it.
Other than that, you're going to have to be a heck of a lot more specific. And I really hope this isn't a masked "Will someone make a megaman type battle system for me?" post.