The story is not very original: As a idiotic knight on the king's court, you have to rescue the kidnapped princess. We had that several times before, as well as comedy.
Eric the Unready is more based on allusions to classics of film and gaming than on an intriguing plot. Serious things (Star Trek) are used as well as other satires are quoted (Monkey Island) or carried on (Monty Python and the Holy Grail) without envy. Of course, that is sometimes done better and sometimes worse. The recognition is high is any case. You will notice the most (and in my opinion best) humor only if you step aside from the normal solution. You can try every silly action you want, the game will recognize almost everything and comment it.