"The one-two-up-the-wazoo"
Make it a trilogy
Worst offenders: Halo 2, Shenmue 2, Metal Gear Solid 2, Ratchet and Clank: Future, Half life 2, God of War 2
You might recognise this one from the movie industry. The one-two-up-the-wazoo is an advanced technique that ensures players will buy the third game in a series, not by making the second game a well rounded, attractive product but by ending it prematurely so players have to buy (and wait for) the third game to find out how the story ends. The only upside to this technique is that it's slightly more subtle than putting a bear trap in the manual.
The main problem with the one-two, aside from the fact it's a cheap, manipulative trick that's designed to score sales for a possibly hypothetical product that is years away, is that it has a chance of miss-firing and bringing the whole series down with it. If a one-two is done particularly badly the second game will not sell as well as the first which actually reduces the chances of a conclusion to the trilogy being made. That my friends, is pure, Morissette grade, irony.
Add to that the fact that sometimes developers go under, sometimes deservedly and sometimes not (for an example look at Ensemble). So what happens if a developer or publisher goes under during a one-two maneuver? Gamers get shafted that's what.
*When this technique is used on the first game in a potential series it is simply called 'up the wazoo'. For a good example of it going horrendously wrong, see Advent Rising.
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