What else am I missing here?

Hint 1 of 8:

You'll need to try annoying Colossus quite a bit.

Hint 2 of 8:

Look at the column just to his right.

Hint 3 of 8:

Try sawing it in half.

Hint 4 of 8:

You should be able to find the right tools if you go fishing.

Hint 5 of 8:

Have you ever heard of cloud fishing before?