"AMOS SLADE YOU TRIGGER HAPPY LUNATIC, GIVE ME THAT GUN!!!" Woman is badass. Just before, she stood staring him down even as he struggled to bring his vehicle to a stop, but never once moved. Then she shoots his radiator, before threatening him with it, with him fearfully responding "Watch it! That thing's loaded!" She promptly fires it into the air without hesitating, then throws it back at him (hard) with the biting phrase "Now it ain't loaded!"
Tod's first came at the den. Confronted by Copper, twice his weight and signalling imminent attack, he showed how an animal tells another You Shall Not Pass: With his teeth. One of them would have finished up dead if not for the bear attack on Amos.
The bear fight at the end has to count, if only for the terrific animation of the bear itself by Glen Keane. It's a fast, powerful and frightening creature, and it really showed what the young, hungry animators at the studio were truly capable of.
Tod's Big Damn Heroes moment when he saves Copper in time from the bear. Just imagine: a 13-pound fox fighting a 1,200-pound bear, an animal capable of snapping a fox in half. And Tod won..
When Tod hears Copper's yelping echo, he turns and is horrified to see his former childhood friend getting nearly killed. Against his better judgment, Tod quickly runs back to save his old friend. Just as the bear prepares for a final blow on the wounded Copper, Tod leaps on the bear's back and bites him on the ear, making the bear turn his attention from the hound to the fox! Biting and scratching wildly, Tod lures the bear away from Copper and Amos. Eventually, he manages to lure the huge bear onto a fallen log over the waterfall which snaps, sending both plummeting several meters down the waterfall. Tod survives.
Made even better by the fact that he didn't even have to do it. He and Vixie could have just run for it, but instead he goes back to save his former best friend after said friend had told him he intended to murder him, his mate, and his cubs.
The bear itself taking a gunshot to the shoulder and continuing the attack like it was nothing.
Copper fighting the bear before Tod took over. Especially when he manages to slash its nose.
Even before the fight, it was awesome. Amos has become ensnared by one of his own traps and is about to be mauled by the bear when Copper jumps and proves exactly why dogs are considered man's best friend: he gives the bear exactly three seconds of warning before he jumps to his master's aid. And he doesn't he try to distract the bear and lead it away, but chomps down right on the bear's neck four times and all but refuses to let go!
Tod, exhausted and nearly drowned from fighting a bear and falling down a waterfall, can barely move as Slade takes aim at him with a shotgun. Then Copper steps in between Slade and Tod and refuses to move an inch causing Slade to come to his senses, calm down and lower his weapon.