Oui il y a un scrolling différentiel ce qui anime la mer : 5 plans pour la mer et 1 pour le décor 
Le sprite de Zonik est bien animé et le tout est très fluide.
Gagné pour le L-sound, c'est effectivement cela
Il s'agit d'une extension matérielle que conçoit TailChao, basée sur un processeur ARM, qui serait à installer dans la Lynx mais séparé du hardware actuel. Je vous met son explication technique :
Each lynx upgraded with this feature will have a few flat metal contacts on the right side of the cartridge port, through which a sound rom will be connected. Programmers may switch the track by sending information through the AUDIO_IN pin on the cartridge port, which a wire will lead off of into the L-SOUND module. The port for the sound rom will also start the power circulation for the L-sound hardware itself, to prevent accidential startups, as the lynx has on its cartridge port. Once completed, the technology will be available to all developers to enhance their games with. Users without the hardware will find no difference in gameplay exept the absence of sound.
