Obviously, you need the samurai sword so that even if you fail, you manage to stab the bear/leave the sword near it's lair.

...Generations later, twelve swords stick out from the bloodied, crazed bear, hundreds of shattered and broken swords stab the earth near it's forests. Gone are the armies of would-be heroes that venture into the forests guarded so fiercely by the demonic bear, even the US Army dare not enter. The Pentagon has placed a large bounty on it's head.

The birth of the LEGENDARY AKUMAKUMO of White Mountain!

Necroooooooomaster