To the user in G-MODE you have to fight with alien invaders. Clashes take place in outer space. At the beginning of the mission, the player has to choose a star fighter and a doll, which provides additional opportunities for fighting. At the same time, you can no longer change your choice during the passage. The entire action consists of a constant shootout with enemies. If the stage is cleared of simple opponents, a boss appears in the arena. You will have to tinker with him longer, applying individual tactics to each.

G-MODE features five levels that gradually become more difficult. After completing each of them, the pilot receives points. They ultimately determine the place in the table of achievements, showing the user's skill. As for the control of the warship, it is not difficult. But the transport itself has a low speed, which makes maneuvering and avoiding enemy shells difficult. In addition, there is a stage where the opponents are only alien admirals. Several types of weapons are placed on board the fighter. At first, they shoot only in a straight trajectory. Due to bonuses, you can improve and upgrade weapons. This gives an advantage in duels. There are several types of ordinary opponents in the game. At the same time, they have different firepower. You should be careful, react to shots in time to move to the side. Some opponents shoot a wall of fire. Here you need to develop and apply your own battle system.