If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Depending on your difficulty setting. Your enemies will die after a while. They may stop chasing you and just depend themselves against your attacks. There are four pieces of the Golden Scarab to be found in the game. Find all of them for a bonus at the end of the game. Some objects in the game can be broken. They may reveal content such as Health or Stamina.