How did Super Hollow Ichigo's cero (Or the ensuing explosion) do such a piss-poor job at eradicating Ulquiorra when it was fired at point-blank range? It's not like the super hollow was holding back, and Ichigo didn't weaken it or stop it by willpower because he was dead before the hollow even took over. Here you can see how big the explosion was and here you can tell that it was so powerful that it sent spiritual pressure down to everyone else.
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Quote from Klapzi
The cool part is that I never get tired of being deceived
Quote from tactics
Just because someone's head was chopped off doesn't mean they're dead. That's just silly.