This show really has improved by Season 3, and the last episode really put the icing on the cake (though I have seen it, like most people who look online, months ago) - I especially loved how they made fun of the tons of unnecessary Batman redeco toys with added features (hated them even as a kid, I wanted a regular Batman toy!) and of course, Ace the Bathound's Scrappy-Doo-like cousin.
And man, Ambush Bug was hilarious. "Quick! HIT ME!" - and indeed, ratings went up.