"Victory! Solid Snake - SiIvaGunner: King for a Day Tournament" is a high quality rip of "Victory! Solid Snake" from SiIvaGunner: King for a Day Tournament. It represents the King for a Day Tournament contender Solid Snake.
This is an arrangement that incorporates the backing melody to "Theme of Solid Snake" from Metal Gear 2: Solid Snake. At the beginning of the rip, we hear the Alert sound effect from the Metal Gear Solid games. Finally at 0:04, Solid Snake says "Mission accomplished!".