Unfortunately, none of us have made a platform shootemup version of our books yet. (Working on it, though. Still on the first level for WPFP, but I'm working on it.) But a lot of us have quizzes, especially character quizzes.
First of all, Morgan Elizabeth Huneke has a few quizzes on her blog that you can take:
Calhortean Character Quiz
Time Captives Character Quiz
Now for the playbuzz quizzes that I can embed:
Let us know in the comments your results for any quizzes you take!
And there may be more quizzes appearing on the page as the e-Con progresses, so do check back!