At the moment Capcom's developers recognised they had a problem, they faced an unthinkable choice. Resident Evil 1.5 had reached 60-80% completion when director Hideki Kamiya and producer Shinji Mikami decided the sequel they'd been building simply wasn't working. Rather than release what they felt was a mediocre game, they made a decision that seemed reckless at the time: scrap everything and start over.
Resident Evil 2 entered development a month after the completion of Resident Evil in early 1996, riding the wave of the first game's surprise success. Kamiya's vision was distinctive but ultimately flawed. The game featured the biker Elza Walker, rather than Claire Redfield, as the playable character alongside the police officer Leon S. Kennedy. The police station Kamiya designed was sleek and modern, a far cry from the decaying, museum-like building that would define the final game.
The problems, however, ran deeper than aesthetics. As the 1.5 version approached release and was 60-80% completed, the development team began to feel unsatisfied with the game, with Mikami stating that "no one element was specifically boring, just everything as a whole", and the Raccoon Police Station was seen as visually uninteresting compared to Spencer Mansion, whilst the low polygon counts caused the zombies to not be scary enough, despite their large number. Kamiya himself later acknowledged he wasn't the right fit for the project. Kamiya said "At the time, I was a selfish idiot who didn't consider the feelings of the users," and when script writer Noboru Sugimura joined the team later, he got upset about the lack of returning characters, leading Kamiya to create Claire Redfield as Chris's sister.
What makes Resident Evil 1.5 historically unusual is its strange half-life. Various builds of 1.5 were used to promote the game at demos and trade shows, with the last public appearance widely considered to be at the April 1997 Tokyo Game Show, though a Japanese gaming magazine seemingly had access to content from the 1.5 version as late as December 1997. Fans spent months seeing footage of a game that would never exist. Resident Evil: Director's Cut was released to fill the gap caused by the delay, and the Japanese release included a bonus disc containing clips of cut content, such as a burning laboratory, fights with zombie apes and a Human-Spider hybrid.
For nearly two decades, Resident Evil 1.5 existed only in magazine scans, grainy promotional videos, and the obsessive speculation of online forums. Resident Evil 1.5 became the focus of fans and video game preservationists to obtain and release a copy to the public. In 2011, the breakthrough came. Purchased by a small group of fans in 2011 from a video game collector and kept private, a half-finished version was leaked online in 2013.
The leaked build, roughly 40% complete, sparked community reconstruction efforts that continue today. While it is theorized that Capcom possesses a more complete version of the game, it has never been shared in any capacity. Yet the existence of the prototype has fundamentally changed how we understand Resident Evil 2's development. It reveals a franchise shaped not by a single vision but by honest judgment calls. Sugimura's insistence on maintaining connection to the original game; Mikami's willingness to reject a nearly-finished product; and Kamiya's later admission that he'd been wrong.
The cancelled game haunted the series for years, but its resurrection through fan effort means it is no longer a legend. The build is fully playable, though not beatable, and the community reconstruction efforts are ongoing. In Resident Evil 2 Remake, Capcom itself acknowledged its forgotten sibling by including a costume for Claire based on Elza Walker's concept art. Some games that die in development simply fade. Resident Evil 1.5, for three decades, has refused to.