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Back when I had a PC which was somewhat capable of playing games I would play Left 4 Dead in cooperative mode. You play along with three other players, and navigate the levels attempting to move from one safe room to another, fighting a hoarde of infected. The game attempts to keep the players moving by adding "special" infected, which have different abilities and are good at forcing the team to leave the current area.

One of the special infected was the Tank, which is quite strong and can throw chunks of pavement. I always knew when he was coming because my PC was kind of weak and the fans would go nuts about 30 seconds before he made an entrance. The other players were surprised that I had a sixth sense when it came to knowing when it was happening.