Having a strong background in web development with special interests in game design and illustration, I believe I can solidly fulfill your requirements for this pixelated action game project. Though I am not a seasoned pro, what I lack in experience, I make up with passion, adaptability, and a hunger for learning. This translates to a high level of creativity, ideation, and fresh approaches to design challenges, which I believe your project craves.
Additionally, my proficiency in HTML, CSS, JavaScript and my explorative nature ensure that your single-level PC game will not only have an appealing design but also be seamlessly functional. And since you're looking for someone who can work well with tight schedules, my commitment to punctuality and efficient time management makes me an ideal fit.
Finally, while I was unable to share any direct examples of game development work due to the particular nature of this project (creating from scratch), I can assure you that my deep understanding and familiarity with cartoonish art styles along with my previous successes designing interactive UI elements can enable me to craft engaging levels with interesting characters and landscapes for your game. Let's join forces and bring your vision to life!