11. Mario Kart 64--Duh
If the Rainbow Road shortcut isn’t the biggest exploit to ever appear in a racing game, we don’t know what is.
12. Team Fortress 2--Door Blocking and Invincibility
Griefing? Exploit? Either way, using yourself to block the door (caution: language!) that other players need to use to leave their spawn points in a multiplayer match is just plain funny. Slightly more frustrating is the actual exploit that used to allowed TF2 Medics to ubercharge themselves indefinitely--an invulnerable medic might not be as bad as an invulnerable scout or pyro, but it can still be quite detrimental to one’s health.
13. Star Wars: The Old Republic--Get Down
Go Jedi; it’s your birthday. Of all the tricks one could use to escape harm in a massively multiplayer online game, the exploit discovered within Star Wars: The Old Republic proves to be one of the genre’s best and funniest. If an enemy was targeting you with any kind of power or ability, you used to be able to type “/getdown” in your chat window to set your character a-dancing. Be it The Force, your mad skills, or a broken game mechanic, your “/getdown” command would interrupt whatever your target was channeling or casting.