The Counting Game
The Counting Game is a screamer by koit, a Flash comedian known for his works throughout 2004-2006, and with his own webpage, www.highasakoit.co.uk.
The screamer disguises itself as a game, in which the objective is to count how many instances of a word/letter there are within a passage of text, then type the answer into a text box before the 60-second timer runs out. However, a giveaway is that the textbox is fake and cannot be typed into. Once the timer decreases to 45 seconds, a screaming, glaring zombie suddenly flashes onto the screen with a loud, echoing, high-pitched scream.
After this, it advertises koit's website and offers a replay button.
WARNING: The following video contains a screamer with flashing lights.