How do I deal with the snake blocking my way

Hint 1 of 7:

You could just kill the snake....

Hint 2 of 7:

A close look at the game's package may offer a clue.

Hint 3 of 7:

Have you rubbed the lamp three times now?

Hint 4 of 7:

You can put the bridle on the snake from a (barely) safe distance.