Games like METAL SLUG 1

"METAL SLUG 3" is a classic arcade-style 2D shooting game with updated visuals, offering both Arcade Mode and Mission Mode for varied gameplay. Vehicles like Slug Mariners and Drill Slugs can be commanded in battles, and a branching map system provides diverse routes to the end. Multiplayer mode via Wi-Fi enhances the gaming experience.

"Blazing Star" is a NEOGEO shooting game with a point scaling system and gorgeous graphics, now available on iPhone/iPod touch. It features an Arcade Mode and a Mission Mode where you can choose your stage, as well as six spaceships with varying strengths and charged shots. The game also offers intense cooperative gameplay via Wi-Fi.

"METAL SLUG X" is a run-and-gun shooting game that features military combat and humorous, over-the-top action. It's a revamped version of "METAL SLUG 2" with additional features, such as new weapons, levels, and enhanced graphics. Players control a soldier fighting against an army of rebels, using a variety of weapons and vehicles to blast their way through each stage. The game is known for its fast-paced action, challenging levels, and quirky, retro-style visuals.

MechBlaze is a part of the Astro Saga universe, serving as a culmination of previous titles. It takes place 12 years after the Battle of the Super Electric Research Facility and the events leading to it . The game features notable characters and mechs from these titles, offering a connected and enhanced experience for fans of the series.

"Natsuki Chronicles is a single-player Science Fiction Shooter game with a good plot, pretty visuals, and an outstanding soundtrack. The game offers a story mode that follows protagonist Natsuki's past and present over 10+ stages, and an arcade mode for quick action with online leaderboards. It also includes customization watch three weapon types, a wide variety of equipment, and a 'Bullet Trajectory Display' function for added strategy."

"Jets'n'Guns 2" is a side-scrolling space shooter where you play as a brave pilot tasked with saving the universe from a powerful enemy threatening to wipe out all sentient life. Engage in epic battles, travel through space and parallel dimensions, and unleash an arsenal of deadly weapons in this action-packed adventure. Local co-op play is also available for even more explosive fun.

In Cally's Caves 4, players join Cally and her friends in their fight against deadly enemies to save the world. This action-packed run-and-gun game features extensive character customization, various weapons, and numerous levels that increase in difficulty. With a local co-op mode, players can team up to defeat the bosses and complete missions together.

"Crimzon Clover World EXplosion" is a shooting game with intense action and colorful explosions. Choose from several different ships and battle your way through hordes of enemies in multiple stages. With various difficulty modes and a scoring system that rewards skilled play, this game offers a challenging and satisfying experience for fans of shoot 'em ups.

"Gigantic Army" is a 2D side-scrolling shooting game where players control a mech suit to fight against enemy forces. With various weapons and power-ups to collect, players must navigate through levels, defeat bosses, and save the earth from alien invasion. The game features multiple stages, each with unique challenges and intense battles.

Defense Grid: The Awakening is a tower defense game where players protect their base by building fortification towers against incoming enemies. With 8 hours of main storyline and many more in challenge modes, each level is highly replayable and can be solved in various ways. The game features 15 different enemy types that increase in strength over time, providing a wide variety of challenges.