99 item stack glitch: Difference between revisions

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[[File:99 item stack glitch.png|frame|right|Corrupting the screen palette after purchasing Ultra Balls.]]
[[File:99 item stack glitch.png|thumb|160px|Corrupting the screen palette after purchasing Ultra Balls.]]
The '''99 item stack glitch''' is a memory corruption [[glitch]] and [[natural glitch]] which occurs in {{RB}} and {{JY}}. It does not work in English Yellow.
The '''99 item stack glitch''' is a memory corruption [[glitch]] and [[natural glitch]] which occurs in {{RB}} and {{JY}}. It does not work in English Yellow.



==Description==
==Description==
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Note that any memory address with value hex:FF will end the search ; hence having all 8 badges will prevent most corruptions.
Note that any memory address with value hex:FF will end the search ; hence having all 8 badges will prevent most corruptions.



==Examples==
==Examples==
*In English versions, when buying Ultra Balls with Ultra Ball ×99 in the last slot of the inventory, it is possible to corrupt $D35D (item 32 quantity; controlling the screen palette) if $D35C (item 32; current sound bank value) is 2 (Ultra Ball).
* In English versions, when buying Ultra Balls with Ultra Ball ×99 in the last slot of the inventory, it is possible to corrupt $D35D (item 32 quantity; controlling the screen palette) if $D35C (item 32; current sound bank value) is 2 (Ultra Ball).
*In English versions, one can exploit the [[Yami Shop glitch]] to buy Master Balls. If D364 (Block-X ID) is 01 and there are no Master Ball stacks which aren't ×99 before it, then one can add to D365 (map exit warp) to access locations up to hex:63 (S.S. Anne Deck). It may be necessary to change the quantity in address D358 to 99 first.
* In English versions, one can exploit the [[Yami Shop glitch]] to buy Master Balls. If D364 (Block-X ID) is 01 and there are no Master Ball stacks which aren't ×99 before it, then one can add to D365 (map exit warp) to access locations up to hex:63 (S.S. Anne Deck). It may be necessary to change the quantity in address D358 to 99 first.
*In Japanese versions, when buying Great Balls with Great Ball ×99 in the last slot of the inventory, it is possible to corrupt number of badges ($D2D5) if the options byte is equal to 3 (Battle Animation On, Battle Style On, medium text speed).
* In Japanese versions, when buying Great Balls with Great Ball ×99 in the last slot of the inventory, it is possible to corrupt number of badges ($D2D5) if the options byte is equal to 3 (Battle Animation On, Battle Style On, medium text speed).



==External links==
==External links==
*[http://forums.glitchcity.info/index.php?topic=6953.0 Ultra Ball and Great Ball glitch, how does it work? - Glitch City Laboratories Forums thread].
* [https://forums.glitchcity.info/index.php?topic=6953.0 Ultra Ball and Great Ball glitch, how does it work? - Glitch City Laboratories Forums thread]
*[https://www.youtube.com/watch?v=OXzQ9rEEa0g Youtube video by TheZZAZZGlitch].
* [https://www.youtube.com/watch?v=OXzQ9rEEa0g YouTube video by TheZZAZZGlitch]
*[https://www.youtube.com/watch?v=R5o_t_ddsy0 Youtube video of the 99 item stack's applications by ChickasaurusGL].
* [https://www.youtube.com/watch?v=R5o_t_ddsy0 YouTube video of the 99 item stack's applications by ChickasaurusGL]
*[https://www.youtube.com/watch?v=6PxBIzRY4eg Youtube video of the glitch being used to go to the S.S. Anne Deck by SM].
* [https://www.youtube.com/watch?v=6PxBIzRY4eg YouTube video of the glitch being used to go to the S.S. Anne Deck by SM]
*[https://www.youtube.com/watch?v=sv2MzM7CPt8 Youtube video of memory corruption caused by buying Ultra Balls and Great Balls in Japanese Blue by ChickasaurusGL].
* [https://www.youtube.com/watch?v=sv2MzM7CPt8 YouTube video of memory corruption caused by buying Ultra Balls and Great Balls in Japanese Blue by ChickasaurusGL]
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[[Category:Generation I glitches]]
[[Category:Generation I glitches]]
[[Category:Generation I natural glitches]]
[[Category:Generation I natural glitches]]
[[Category:Natural glitches]]
[[Category:Natural glitches]]
[[Category:Pages with an accompanying Youtube video]]