The game is designed to be simple to play. The player ship automatically flies forward through the level. The player must move the ship in order to avoid enemy fire, walls and other obstacles to reach the end of the level. When the player is hit, the green life bar at the top of the screen will reduce. If the green bar is empty the player dies and gets a game over screen and is then returned to the title screen. Collect the green power-up to refill the life bar.
When the player approaches a boss, the level will stop and the player must shoot the boss until it dies in order to progress. The life bar of the boss is shown at the top right side of the screen. The basic strategy is to shoot as many enemy ships as possible and collect all the power-up boxes to gain weapon upgrades (yellow) and bomb upgrades (blue). Bombs are very effective at killing everything, however the player must aim carefully to make a direct hit on the target. Bomb explosions can kill many enemies for bonus points. The blue meter is the bomb charge meter, the player has to wait until this meter is filled before they can fire another bomb.
After the last level is finished the player wins the game and can continue the game with all points and upgrades collected.

Version 1.81a

* Ajout de deux nouveaux levels et deux nouveaux levels bonus sur la lune. Au total, 14 levels .
* Ajout d'un support pour jouer avec la wiimote à l'horizontale (faites option -> POINTER = NO)
* Ajout d'un effet d'explosion par fragments
* Ajout de textures de fond sur plusieurs stages
* Ajout de la lune à l'écran de sélection de la planète.
* La nouvelle musique du level 2 est Journey to Silius (Amiga Module) par benanderson89
* Ajout d'un nouveau type d'ennemis pour le stage final
* Correction du "SlowDown" du leve 3
* Changement de la fumée et de la forme de balle, Ajout d'un sentier de bombes, D'un SPLATCH d'eau
* Mise à jour du Lua API pour autoriser les programmeurs pour définir le background et les textures du soleil pour les stages
* Correction d'autres bugs