Contested Sequel: Some fans consider Size Matters to be the worst game in the franchise, mainly due to Ratchet returning to his jerkass roots and 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 Luna being a difficult boss.
Into The Nexus confirms that Size Matters and Secret Agent Clank are non-canon.
Good Bad Bugs: The Fire-Bomb Armor allows the player to shoot a fireball out of their wrench on the third swing of a combo. If the player kills enough enemies with it, the Scorcher will upgrade. If the player hasn't bought the Scorcher yet, they can now get it for free! note In the PSP version at least. We aren't sure about the PS2 version.
Moral Event Horizon: Luna may have been a jerkass when we found out what it really is, but it crosses the line for good when it tries to KILL the heroes with farming equipment.
Sequelitis: Size Matters is often criticized by fans for a weaker story, lots of narm, several Good Bad Bugs, recycled plots, and for coming after the highly popular Up Your Arsenal.
That One Boss: 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.
The Scrappy: Luna and Otto are despised by the fanbase: Luna for being That One Boss, and Otto for his narm and being a rehash of Chairman Drek.
First of all, Qwark reveals that he found his entire family tree on a site called "Faux Family.com", which Clank finds odd. You'd Expect: That Clank tell Qwark that the website might be a fraud because of it's very suspicious name, or at least warn him that the site might not be 100% accurate. Instead: He says nothing, allowing Qwark to reunite with who he thinks is his father.
Second is when the little girl begins to speak in the voice of an adult woman, commenting about her "friends". Ratchet is very shocked at this. You'd Expect: Clank to realize that the girl is actually allied with their enemies, and warns Ratchet that they must flee before something happens. Instead:He dismisses Ratchet's shock, and starts teaching Luna to talk properly. She zaps him unconscious, and both heroes are captured.
And finally, after destroying the Luna puppet that had been antagonizing them for most of the game, Clank suggests that they get the coordinates for the final planet from it's database by hacking into it. Ratchet suspects that the technomites have a security program that could harm potential hackers. You'd Expect: That Ratchet and Clank take Luna to Metropolis to have Big Al hack it for them. Instead: Clank decides to hack Luna himself. As expected, a security program inside it causes him to malfunction.