if i dont need to make it controler friendly please do tell me also if i like the game can i develop it more and sell it on steam
The usual button mapping for GBJAM is Z for A and X for B (or X for A and C for B). Then you use shift/control/space/enter for select/start and the arrow keys.
For the jam entry the game must be free for people to rate it. After the jam is finished you can develop it more and do what you like with it!