The game was officially delisted on or before August 28, 2017. Since then, you cannot purchase Rock Band Blitz through any official, first-party digital storefront. Adding to the complexity, Harmonix also confirmed that Blitz would never be made backward compatible on the Xbox One or PlayStation 4 (and by extension, the Xbox Series X/S or PS5).
You're looking for a download link for the rock band Blitz. Here are some details and possible sources: rock band blitz download link
share methods for installing the demo or using software exploits for older consoles, but these are unofficial and may require modified hardware. The Rock Band Blitz Soundtrack The game was officially delisted on or before
Video game music licenses are typically negotiated for a set number of years (often 5 to 10 years). Rock Band Blitz launched with a stellar 25-song soundtrack featuring artists like Blink-182, Foo Fighters, Foster the People, and Iron Maiden. When those 5-year licenses expired in 2017, Harmonix lost the legal right to sell the game bundle commercially, forcing its removal from digital stores. The Delisting Date You're looking for a download link for the rock band Blitz
Developed by Harmonix (now owned by Epic Games), this free-to-play mode inside Fortnite uses the exact same controller-based, lane-matching mechanics as Rock Band Blitz .
While the game itself is gone, the music remains accessible in newer titles: