As it turns out, Plankton's stubby feet can't help him stand up after entering his so-called infiltration sphere, so Karen has to move him around in order for him to reach Mr. Krabs' secret formula.
assets/bootstrap/config/translation_en.xml contains a bunch of unused text strings, all labeled as "Debug Text". Notably, there are strings associated with the intro and ending comics; given there are duplicate xml files with the suffixes "cn" (Chinese), "jp" (Japanese), "kr" (Korean), "la", and "ru" (Russian), they might have been displayed during these scenes; the final game has the text be embedded on the images instead.
<string id="continuenextlevel" fontName="Basic" fontScale="1" offsetX="0" offsetY="0">
Click Anywhere to Continue
</string>
<string id="comic1.1" fontName="Basic2" fontScale=".2" offsetX="0" offsetY="0">
Today I shall get my hands on that krabby patty secret formula
</string>
<string id="comic1.2" fontName="Basic2" fontScale=".2" offsetX="0" offsetY="0">
Karen, you'll hack into Krabs' security system and disable any alarms.
</string>
<string id="comic1.3" fontName="Basic2" fontScale=".2" offsetX="0" offsetY="0">
While I sneak in through the vents.
</string>
<string id="comic1.4" fontName="Basic2" fontScale=".2" offsetX="0" offsetY="0">
In my brand new protective infiltration sphere!
</string>
<string id="comic2.1" fontName="Basic2" fontScale=".4" offsetX="0" offsetY="0">
15 minutes later
</string>
<string id="comic2.2" fontName="Basic2" fontScale=".4" offsetX="0" offsetY="0">
Thump!
</string>
<string id="comic2.3" fontName="Basic2" fontScale=".4" offsetX="0" offsetY="0">
Wiggle Wiggle
</string>
<string id="comic2.4" fontName="Basic2" fontScale=".4" offsetX="0" offsetY="0">
Karen!
</string>
<string id="comic3.1" fontName="Basic2" fontScale=".2" offsetX="0" offsetY="0">
The Krabby Patty secret formula... It's finally mine!
</string>
<string id="comic3.2" fontName="Basic2" fontScale=".2" offsetX="0" offsetY="0">
Come to Papa
</string>
<string id="comic3.3" fontName="Basic2" fontScale=".2" offsetX="0" offsetY="0">
This plan might need some re-thinking
</string>
pattyplunder_introcomic1.jpg and pattyplunder_introcomic2.jpg, found in the directory assets/initial_load/ui/comic, are unused textless versions of the intro comic graphics. They might be linked to the unused text strings noted above.
Likewise, pattyplunder_endcomic.jpg, found in the same directory, is a textless version of the ending comic graphic.