Doodle'd !: A Doodles Adventure

Doodle'd is a idea I thought up of when learning about single screen games like baldings quest and xaneneko.Its a planned trilogy and its quite idiotic.
You play as DOOD,a doodle who must go through various areas and earn power ups.
Its a new,simple idea that I wanted to work on instead of going big with my other project(http://forums.tigsource.com/index.php?topic=21554.0).
there's also a back story as well,and i kinda like paper thin story's in games or a back story.It makes it easier to work on a game.
Questions:
Whats a good development program to use this in?
Does this sound f***ing stupid?
would it be more appealing if this was 3d?I never saw a single screen game in 3d...

thanks if you leave feed back!!!