SideLine is a 2D side-scrolling shooter, will all the features typical to mid 90's classics, such as power-up items, various types of weapons, shield that absorbs damage from enemy projectiles, accompanying drones or level bosses at the end of every stage. The action of this game takes place in the future on a hostile planet, where two small ships are sent to destroy enemy creatures. The screen is moving constantly to the right, although the duel with the level boss takes place on a single screen. The basic weapon has infinite ammunition, more advanced weaponry requires collecting missiles. Enemies are divided into mobile and stationary, supplemented by traps and walls.