Okay, the basic teasers has been finished,
https://scratch.mit.edu/projects/106486796/
https://scratch.mit.edu/projects/106766320/
https://scratch.mit.edu/projects/106305843/
The Demo is in Progress.
Which of these characters should be included in the game? If you have any more to suggest, please reply.
. Killer Croc
. Flash
. Robin
. Red Hod
. Alternate Universe Batman

I personally think that all of them should be included.