Gun.Smoke

Gun.Smoke is a vertically scrolling shooter video game in which players use three buttons to shoot left, right, and center. The player can also change the way Billie Bob shoots through button combinations. The player dies by getting shot, struck by enemies, or caught between an obstacle and the bottom of the screen. The player can collect various items, including a horse for extra protection, boots for increased movement speed, bullets for faster shots, a yashichi for an extra life, and a rifle for longer shot range. Other items add points to your score such as stars, bottles, bags, and dragonflies.

Source: TheGamesDB