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* AlternateContinuity: A lot of fans see the game and it's sequel as this, due to the lack of references in the Future trilogy and beyond. ''Into the Nexus'' confirms this.
** Averted in Japan...
*** ...[[{{CanonDiscontinuity}} only to be retconed from canon]]
* BrokenBase: Though it did sell well on the PlayStationPortable, and got plenty of positive reviews, fan reaction to the game is mixed.
* ContestedSequel: Some fans consider ''Size Matters'' to be the worst game in the franchise, mainly due to Ratchet returning to his jerkass roots and [[spoiler: Otto's plot to extract intelligence, which Clank considers "pure evil",]] to be quite narmy. Not to mention the amount of glitches in the game, and [[spoiler: Luna]] being a difficult boss.
* FanonDiscontinuity: Some fans pretend this game and it's sequel never happened. Of course, [[{{CanonDiscontinuity}} Insomniac themselves never mention the canon status of the games, no matter how many times people ask]].
** ''Into The Nexus'' confirms that ''Size Matters'' and ''Secret Agent Clank'' are non-canon.
* MoralEventHorizon: [[spoiler: ''Luna'']] may have been a jerkass when we found out what it really is, but it crosses the line for good when [[spoiler: it tries to KILL the heroes with farming equipment]].
** And Otto is soon revealed to be over this line when Qwark finds out that [[spoiler: the technomites killed his parents]].
* {{Narm}}: Clank's line: "That is pure evil". Of course, Otto Destruct's plan to [[spoiler: extract intelligence from people using an army of clones]] isn't as evil as many other villains, especially in the canon games.
* [[{{Sequelitis}} Sequelitis]]:
* ThatOneBoss: [[spoiler: ''Luna'']]. It takes a long time to go down and her attacks are tough to avoid. And if you die, you have to go through the running-through-the-field sequence and cutscene ''again''.
* TheScrappy: Luna
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