HLSP Bunny, initially known as Half-Life Bunnyhop mod, is a mod for Half-Life 1 which removes the 544 ups jump speed cap introduced in post-WON builds of Half-Life. Beyond that, it maintains current gauss charge through level transitions and save loads and includes an autorecording feature. It was initally developed by MrBozo. By 2011, Rofi updated and compiled HLSPbunny and included it in his New Gauge Half-Life client.