In the 22nd century, mankind has expanded into the stars and begun colonizing uninhabited planets, including Gloria, an Earth-like planet containing large natural deposits of gold. Due to the high cost of reaching the remote location, life in Gloria was relatively impoverished and resembled the American Old West. An alien race of space outlaws called the Wild Lizards were drawn to the planet and invaded, enslaving its inhabitants to mine gold for them. Two settlers who were part of the planet's colonization team take control of revolver-shaped fighter aircraft in an attempt to overthrow the invaders and free their surviving civilization.
Gameplay
The game is a vertically scrolling shoot-'em-up game in which players control revolver-shaped fighter planes through six stages in an effort to defeat the Wild Lizards and free their surviving people from enslavement by space pirates. It can be played by one player or by two players simultaneously, each piloting a separate fighter. The second player can join during the game by pressing START on a second control pad. The designs of the fighters and the enemies have a "Wild West" theme, including revolver-shaped planes and turrets, Western-style towns, and railroad tracks.
The fighters move in any direction using the D-Pad. The playfield is slightly wider than the viewable area, so moving near the left or right edges pans the screen over. The fighters start with dual machine guns that are fired by pressing for a single volley or by holding or for continuous fire. These guns can be upgraded by collecting dimes dropped by some enemies after they are destroyed; every five dimes collected strengthens the fighter's firepower. There are four gun upgrades, which widen the shot from two to four bullets, widen the shot from four to six, upgrade the middle two bullets to larger bullets, then finally upgrade all six bullets to larger bullets. The fighters can also drop a bomb with , which does damage in a large area in two parallel streams. Each fighter start with a set number of bombs that can be upgraded to deal increased damage and cover a larger area by collecting gold bars from destroyed ground forces. Upgraded bombs can pivot horizontally in the opposite direction of the fighter's movement. After accumulating 25 bombs, players gain the strongest bomb, the Bomber Max, which is held in reserve until used.
A fighter is destroyed after taking a single hit from an enemy. It respawns at a predetermined checkpoint if the player has extra lives remaining (or immediately if in the midst of a boss fight), with the guns downgraded by one level. The game ends if the player runs out of lives but can be continued. The game has two difficulty levels (Easy and Normal), and players can set the number of starting lives (between 1 and 5). There is a Saturn mode that uses a conventional horizontal aspect ratio and an Arcade mode that rotates the screen by 90 degrees to replicate the original arcade version's vertical presentation.
Items
These enemies arrive in waves and release a Dime when destroyed.
Dime
Collect 5 to upgrade the main guns.
Gold Bar
Collect to upgrade the bomb. Collecting 25 adds a Bomber Max to the inventory.
Stages
Stage 1
Stage 2
Stage 3
Stage 4
Stage 5
Stage 6
The fighter cannot be damaged in the first part of the final stage. The last part consists of a "duel" with the boss where the fighter has six rounds and must fire a single shot past the defenses and hit the boss in order to win and get the good ending. If the fighter is instead shot by the boss, the game ends with a bad ending. Players only get one try to win the duel since the game ends with either outcome.
Versions
The game has been either deliberately modified or imperfectly ported. The scoring system is different from the arcade version; e.g., releasing flames on the mountains on the right side of the screen, just at the start of the game, plays a tune and adds bonus points. This is missing from the Saturn version.
Production credits
The Author & Produce: Takatsuna Senba
Game Design: Takatsuna Senba, Takamasa Hori, Takayuki Ogawa, Naoya Kuroki, Brody Tadashi, M&F Nagai, Yack
for a single volley or by holding 
or 
for continuous fire. These guns can be upgraded by collecting dimes dropped by some enemies after they are destroyed; every five dimes collected strengthens the fighter's firepower. There are four gun upgrades, which widen the shot from two to four bullets, widen the shot from four to six, upgrade the middle two bullets to larger bullets, then finally upgrade all six bullets to larger bullets. The fighters can also drop a bomb with 
, which does damage in a large area in two parallel streams. Each fighter start with a set number of bombs that can be upgraded to deal increased damage and cover a larger area by collecting gold bars from destroyed ground forces. Upgraded bombs can pivot horizontally in the opposite direction of the fighter's movement. After accumulating 25 bombs, players gain the strongest bomb, the Bomber Max, which is held in reserve until used.
砂漠の山嵐
