Like other Protoss players, Bisu generally starts the games with commencing a second base, Corsair harass when confronting Zerg and subsequent attack of mixed units, including High Templars. Conducting a relentless harassment, often using Probe scouts and known for superlative multitasking, Bisu widely used Corsairs to gain air superiority and Dark Templar assaults against Zerg. Bisu's harassment style and the use of Shuttles were praised particularly by Stork. Bisu popularized the associated opening against Zerg, which has been called the "Bisu build": a Protoss player in such opening would warp in a Forge, skipping weapon upgrades, and having warped in a second Assimilator early, would ultimately proceed to Corsairs and Dark Templar harass, followed by extensive Gateway gameplay. Bisu subsequently qualified Corsairs and Dark Templars as his favorite units.