I'm still not entirely sure what your characters are, but you seem to have fun with them...
I pity Fox, for He is more clueless even than I usually manage.
Mandatory critique:
Hmm...not much in the way of a background, though I suppose that probably has a lot to do with time/style.
My biggest complaint is that it is just wide enough to add a scroll bar at the bottom of the screen. This vexes me, though it's not that big of an issue. After all, if it weren't in the forum, it wouldn't be a problem.
Since they're chibi styled, I really can't critique the rest. Looks good, considering.