On his website, Bleszinski often shares his thoughts and feelings on the world, American culture, gaming, and life in general. He is occasionally cited for his charitable nature like helping fans get jobs in the industry. Bleszinski also lists his interests on his 1UP.com page, citing Donnie Darko and 21 Grams amongst his favorite films, with Choke and Stupid White Men as some of his favorite books.
Bleszinski's first game was The Palace of Deceit: Dragon's Plight, a 1991 pixel-hunting adventure game for Windows. He is also known for the games Dare to Dream and Jazz Jackrabbit. In 2006, he served as lead game designer on the game Gears of War for the Xbox 360. Bleszinski will be an executive producer on the upcoming Gears of War movie.
The nickname "CliffyB" was given to him derogatorily by "some jock kid" as a shy teenager, which he then took and developed a tougher persona around. In 2008, he expressed a desire to retire the CliffyB moniker, saying it's "time to grow up a bit".