Zero-G Random Booster Vol. 4 Guardian Garudas SD145PF (ゼロジーランダムブースターVol.4・ガーディアンガルダスSD145PF, Zero-Jī Randamu Būsutā Vol. 4 Gādian Garudasu SD145PF) is an unreleased Zero-G Random Booster intended to be a part of the Metal Fight Beyblade Zero-G series.
Scheduled for a tentative early 2013 release, it was cancelled for unknown reasons. However, it was likely due to a slump in Beyblade sales and/or the cancelled airings of the "lost" episodes of the anime, which most of the Beyblades in this set was to consist of.
Initial product descriptions indicated the "Zero-G Random Booster Vol. 4 Archer Garuta" Random Booster set was to include a Garuda-themed Beyblade as the "Super Rare" prize Beyblade. This "Archer Garuta" was later revealed to be Guardian Garudas SD145PF, and "Archer Garuta" was simply a placeholder name. As all Zero-G Random Boosters were released two months apart (Zero-G Random Booster Vol. 3 Bandid Genbull F230TB was released in October 2012), a January 2013 release was likely.