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# Jump 'n Bump - RetroBIOS

Type | game
Classification | game_engine
Source | https://github.com/libretro/jumpnbump-libretro
Upstream | https://github.com/fabiangreffrath/jumpnbump
Version | v0.1
Profiled | 2026-03-24
Cores | jumpnbump

Technical notes

Libretro port of Jump 'n Bump, a multiplayer bunny-stomping platformer originally by Brainchild Design (1998). Released as freeware under GPL.

The core loads a .dat archive file as content via retro_load_game(). All game resources (sprites, sounds, levels, fonts, music) are packed inside the .dat file. No system directory files, BIOS, or firmware required. The .dat file is built from the data/ directory by the jnbpack tool in the upstream repo.

Extra levels are available from brainchilddesign.com as additional .dat files.

No BIOS or firmware files required. Generated on 2026-03-25T14:56:43Z