I'd like the following blocks into the game
>Lying guy facing left
>Lying guy facing right
>Guy with gun facing left
>Guy with gun facing right
>Shot guy facing left/right
>Guy in the middle of being shot, facing left/right
And a tool for placing background walls and erasing them.
No violence please.

As for the backwalls, this is something I considered but decided against. There's no easy way to get them to work with objects like the door, bed, table, or stick figure. :/
If anyone is willing to make a good 20x20 leaf texture I will include it in the next version of Bit Builder.
EDIT: Ike, your build was so cool I put it on my Facebook. I've shared my game there already and am showing all my friends and family what cool things can be made. Congrats. :D