@suzuki-zombie
1) You don't have to be a jerk, there was a nicer way to say that, and 2) DUH! The sound is obviously from MASS EFFECT 3(the reaper sound). Must be to young to have heard of it. :) Have a nice day.
@Author
Really good game. I agree with ViperKilo when he said it could've been a reaper, but I understand why you couldn't (copyright). Nevertheless Really Good Game. Though I kinda hate the fact that its a little to easy and we cant control the tripod.
*Suggestion
Make a sequel with a story-line and a movable character. I'll be looking forward to what you do with this or any game you make in the future.