MarioForever

[HellRaider]

Hi, i wanna mod MarioForever Basicly, but i don't have a clue how to start,Help"?

[Vertigo]

You'll be wanting a PC software modding forum then.

[HellRaider]

I can't find one for Mario editing  

[Vertigo]

If you haven't got a clue how to start, by your own first post admission, you'll need basic points of how to start.
Hence you will need to find a forum that discusses PC game modding in general. There are lots of those.
This isn't one of them.
Good luck.

[FM-77]

Check this out:
www.gamemaker.nl

It'll be a great resource if you're interested in making your own games.