Jump ’n Bump — Brainchild Design and Jump ’n Bump contributors. GPLv2 or later. Free engine and original game assets included; no purchase or imports required. Leaf changes: Original data built with original tools. Network compilation disabled; modern C forward declarations only. Original -nogore option is enabled. Play on one keyboard with up to four players; number keys toggle computer opponents in the arena. Built locally with Emscripten 4.0.23 and SDL2/Asyncify. Browser adapter GPLv2 or later. Source: source/ includes exact upstream source, overlays/build scripts, additional linked library source, and shared Emscripten/browser library sources at ../scummvm/source/. Original COPYING and upstream author/asset notices are preserved in the complete source archives. Boost Software License 1.0, PhysFS zlib license, Lua MIT, tinyxml2 zlib and libmodplug public-domain/MIT notices are included in source archives as applicable.