[1] However, whether particular acts constitute an exploit can be controversial, typically involving the argument that the issues are part of the game, and no changes or external programs are needed to take advantage of them.
[3] Whether an exploit is considered a cheat is a matter of widespread debate that varies between genres, games, and other factors.
[2] The players who use such techniques may consider them fair for use in the game if they are not explicitly disallowed in the Terms of Service or other such rules governing participation.
[8] Another famous incident during the Ultima Online beta test saw a player kill Lord British when that character was supposed to be invincible; the tester was later banned for exploiting because he did not report the bugs he found.
Positive opinions of the exploit can lead to the designers embracing it as emergent gameplay, such as when skiing in the Tribes series of games gained developer support.
The now-standard practice of rocket jumping originated in a similar way, by exploiting game mechanics in a way not foreseen by the developers.