This WWII shooter used the widescreen resolution perfectly. The game featured a "lean and peak" mechanic around cover, and the 640x360 screen allowed you to see enemy muzzle flashes in the peripheral view. The exclusive version also had higher-poly character models—the faces actually looked human.
While many Java games were ported across multiple resolutions, several major releases had "HD" versions specifically built to utilize the 640x360 screen real estate and touchscreen capabilities: java games 640x360 exclusive