小朋友齊打交2（Little Fighter 2，縮寫：LF2）是小朋友齊打交的續集，於1.9版時期曾被改名為小鬥士二，但現時2.0版都沿用原名，理由似乎是原名早已深入民心。
背景該遊戲系列由香港中文大學計算機科學系學生Marti Wong（小熊）及Starsky Wong（浩然）合力開發，共分兩作，分別為《小朋友齊打交》（Little Fighter，LF1）及《小朋友齊打交2》（Little Fighter 2，LF2），主要以Visual C#與DirectX程式庫編寫。(Little Fighter 2 (Little Fighter 2, abbreviation: LF2) is a small fighter sequel to version 1.9 has been renamed as the period of little fighter two, but the 2 edition follows the old, reason seems to be already thorough popular name.
The background of the game series by the computer science department of Chinese University Hong Kong student Marti Wong (cubs) and Starsky Wong (Hao Ran) jointly developed, is divided into two, respectively "little fighter" (Little Fighter, LF1) and "little Fighter 2" (Little Fighter 2, LF2), mainly Visual C# and DirectX library to write.)