I have such a soft spot for animation that I'm overly generous with applause if there's even the slightest sign of a work being created with genuine loving care, joy, excitement and inspiration. This Ice Age has none of those things.
We all knew they couldn't keep it fresh and creative forever; this episode signals they're out of ideas, out of story, out of dialogue, out of characters, out of steam and just don't care anymore. The formula for this one seems to be "Let's jam it with a wagonload of uninteresting new animals to make up for being unable to create a single new fresh, fun and funny character." They also kept the pace at a frenetic speed so viewers have no time to think about how predictable and cliche every action and phrase really is. They could have not bothered stamping out this assembly-line entry at all, and would have ended up with the same result; a totally unmemorable speed-race through a blur of storyless scenes.
Denis Leary's tough-talking tiger character finally gets a girlfriend, but even here, very little effort was put into her graphic design and dialogue to make her the slightest bit special. Remember the adorable baby in episode #1? And the fantabulously sparkling British/Aussie jungle guide from another episode? Of course you do. This sequel has none of that memorable creativity, being utterly void of charm and delight. It's only merciful act was being over and done in a flash, relieving the audience quickly of its boring misery.
Ice Age is officially extinct.