How do I get past Biff

Hint 1 of 7:

You can't talk you're way past him.

Hint 2 of 7:

You're going to have to fight him.

Hint 3 of 7:

But he's no match when he's at full strength.

Hint 4 of 7:

If only he were drunk ---

Hint 5 of 7:

But it takes a lot to get him drunk.

Hint 6 of 7:

Have you been in Vogel's office yet?

Hint 7 of 7:

Fill the trophy with ale, and give it to him.