The price for a PS4 copy of the relatively obscure Star Wars racing game, Star Wars Racer Revenge, has dramatically increased in the last few days because of the game’s use in the latest PlayStation 5 jailbreak, Eurogamer reports. The PS2 game was originally released in 2002, and was ported to PS4 by Limited Run Games in 2019. Its role as a key ingredient in the jailbreaking process was announced on December 31.

Interested jailbreakers need Racer Revenge to jailbreak PS5 12.00 firmware because of a bug in the game’s Hall of Fame feature, according to Eurogamer. The bug makes it possible to inject new code into Sony’s console, and because the PS5 is able to load and play PS4 discs, Star Wars Racer Revenge is an easier method to pull the jailbreak off. Retail releases of games are a common way to execute exploits and hacks because, unlike digital copies, they can’t be directly patched.

While the PS4 version of Star Wars Racer Revenge was available for anywhere between $14.99 to $37.50 when it went on sale originally, used copies are currently listed for as high as $411 on eBay. Sellers are naturally trying to capitalize on the game’s new position in the jailbreaking meta and raising the price accordingly. Of course, it helps that there’s only a small number of copies to go around.

As the company’s name suggests, Limited Run Games releases old games in limited quantities as collector items. The company only ever made 8,500 copies of Racer Revenge per its own data, so the game is already rare in some sense, and now expensive to boot while there’s interest in the PS5 jailbreak.