Being a level-based game, players will face a variety of challenges as they progress. Starting from basic levels with weaker monsters, players will eventually reach more advanced levels with bosses and a larger number of monsters. These monsters will continuously appear as players make their way through the game, and a red glow will signal their defeat. Along with this, players will also be rewarded with gold coins that drop from the defeated monsters. When players reach the end of a level, a grey door will appear, signifying its completion. The game�s main screen features a long and winding road filled with pitfalls and monsters. Players can use virtual keys in the bottom left corner to move their character left or right and a viewfinder-shaped key to make shots. There is also an upward arrow key for jumping when needed. Players must be careful to dodge enemy attacks and land their own finishing blows. One interesting aspect of the game is the opportunity to meet and team up with other characters along the way. These characters are available for players to use in battle, and players can switch to them by moving their character onto them. Each character has unique abilities and appearances, including a male combat hero in a blue outfit and a female warrior with exceptional courage and stunning costume design. In addition to battling monsters and robots, players must also navigate through various obstacles such as stairs, thorns, and moving platforms. These challenges add to the intensity of the game and require quick reflexes from players. Along the way, players can also collect gold coins and hidden treasures, as well as encounter mini-games for extra support items. The game�s locations are also diverse and constantly changing, with vibrant colors and backgrounds ranging from industrial areas to progressive machines. These locations can also offer additional support items and upgrades for players. With an exciting combat gun system and the chance to become a cosmic hero, Metal Fire - Space Invader offers an immersive and thrilling gaming experience.