The goal of Battle Jump is to guide your character to the end of the platform in order to win. Players can compete against each other or go it alone.
The web site is in French so I was unable to extract any additional information regarding the game and its requirements, but it runs very well under Ubuntu 9.04 x86 on modest hardware (Athlon 64 3200+, 2GiB DDR400 RAM, NVIDIA GeForce 7800GS).
It's a free download and I encourage everyone to give it a try. Battle Jump is very fun and highly addictive :)