well i apologize first because i''m a french native speaker then i will not have a perfect english, and speak can turn very ugly, sorry...
well, weak character IS a GOOD idea since it''s not new and is often use
"The character genre "The Weak" relies on its friendships with other characters to win. Other genres such as the Strong and Unseen rely on their own abilities and powers rather than friends and are often attacked because of their strength. The Weak is almost never the focus of an attack because of weakness but with their friendships sometimes with characters more powerful then them they are able to accomplish their goals. The Weak''s strength is in their dependence on others.
An example of a Weak character is a servant or perhaps a child. These are good examples of weak cvharacters. Note: A character is still considered weak if he doesn''t rely on only his own strength even if he is a king."
according to this definition, we have game like the sims, princess maker 2, tokimeki memorial, which deal with social or even romantique setting and are still fun... and there is many example like this one (monkey island or some adventure game) you don''t need to rely on strength
you have also game u can called ''survival'' not mean survival horror (not only for some of them) which the weakness IS the gameplay but game like kurukururin or pacman, bombjack, etc... (ok you have some power bonus sometimes but not all of these game) well i mention old game because that''s the one who get into my brain at the moment but then try to find modern game which fit...
>>>>>>>>>>>>>>> be good be evil but do it WELL >>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>be goodbe evilbut do it WELL>>>>>>>>>>>>>>>
There are probably much better examples, but would something like the cartoon Tailspin be considered a weak hero? I don''t think the "good guys" in ever shot at the "bad guys", never defeated them through strength, but more seemed to just escape and found some way of ruining their plans (stole something, whatever).