I see near the bottom they have instructions on adding your own characters. So... maybe you could do it? :)

We planned for it but then got too ambitious. We now want animatable xkcd-like characters :-)

We'll probably try it for a few weeks before giving up.

Can I use these cartoons in a game?

Absolutely! Do let us know if you need any specific characters.

More thinking needed. Time for pizza, beer and a small gaggle of creatives.