Ganbare Snake was a downloadable cell phone game. It was a crossover between Metal Gear Solid 4: Guns of the Patriots and Ganbare Salary Man that was available through Sony Ericsson's download service PlayNow. Ganbare Salary Man, a cell phone game about a middle-age salary worker, was modded to feature characters from Metal Gear Solid 4 in a collaboration between Konami and Sony Ericsson. The download service is no longer available.
- Ganbare Snake on Konami's official site.