The entire final battle. Just kept upping the ante. Shall we tick off a few highlights?
Our wounded hero faces off against the last adult alien. He fights her with a sword until it gets lodged in the alien's tail. He draws a second sword. The alien draws the sword out of her tail and they duel.
The hero's sword gets cut in half, so he draws the gun and fires a few times. The alien knocks it away... then picks it up and shoots at the hero (who dodges in awesome fashion).
Hero gets alien in a sleeper hold until foam starts coming out of the alien's... blow-holes?
Alien sprouts giant bat wings.
Alien takes off into the sky, and we think she's gotten away... but no, our hero is actually holding her by the feet! Let the mid-air combat commence.