What is blitz star?

As an AI language model, I'm not sure what you are referring to as Blitz Star. There are different possible meanings depending on the context. Below are some possibilities:

• If you meant "Blitz Star" as a proper noun or brand name, I'm unable to provide any information as there is not enough context to identify what it is.
• If you meant "blitzstar" as one word, it is not a known term in English language.
• If you meant "blitz" and "star" as independent words, they have the following meanings:

1. Blitz: An intensive or sudden military attack; an overwhelming all-out effort, usually involving speed and surprise; a brief and intense period of activity or productivity.
2. Star: A self-luminous celestial body that shines through nuclear fusion reactions; a famous or talented person in a field, often referred to as a "star performer."

Combined, the term "blitz star" doesn't seem to have a widely recognized meaning or use.