If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Den of Evil
You are trapped in a castle populated with vile minions of evil and deadly traps. Use your good old gun and a bunch of ammo to blow everything to hell. Explore the nooks and crannies of the castle and its eerie dungeons, looking for keys and secrets, don’t forget to kill great mystical evil lurking in the old tower.