It's awesome that you're making a game for your son. Very cool!
If you want to give yourself an even greater challenge, Ludum Dare starts tonight. Makes 7 days seem leisurely! I haven't done one in a while, but last time I did I made a simple JS whack-a-mole game inspired by the decrepit public transit around Washington DC.
Uh, I've been wanting to use Ludum Dare to work on a game for a very long time, maybe next year! Keeping up with the days will be a challenge for me already, I don't want to overdo it.
Thanks for the suggestion though!
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