Guinea Pig Gunner

Download this special Playtest Preview build today on itch.io before the game's full release in Q2 of 2026! Wishlist on Steam and join the Discord to stay up to date.

In the 22nd century, the Federation of Earth deploys its ultimate weapon: Gunner, a cybernetic guinea pig built to repel the Terranublans, a fanatical reptilian race that worships a rogue AI bent on galactic conquest.

Guinea Pig Gunner is an explosive side scrolling action adventure that fuses precision platforming with a massive arsenal of weapons.

This playtest preview build includes two levels: Echo Mountain, where Gunner must scour ancient ruins to activate planetary defense technology from a lost civilization, and St. Athens, a volcano that the Terranublans are trying to weaponize against the inhabitants of Earth.

Key Features

• Move With Style: Run, jump, dash, wall climb, and teleport across 12 sprawling stages, from erupting volcanoes to frozen wastelands and futuristic metropolises.
• Bring the Firepower: Rockets, grenades, flamethrowers, firebombs, and more. Over half a dozen weapons give you plenty of ways to shred enemies.
• Aim Anywhere: Full 360 degree aiming with mouse or controller for precise, responsive combat.
• Teleport to Victory: Blink through walls, telefrag enemies, ambush squads, and solve environmental puzzles with your teleporter.
• Enemies That Hunt You: Terranublan forces chase you down on sight, striking from the air and ground, forcing constant movement and quick reactions.
• Twelve Massive Stages: Battle through handcrafted environments filled with enemies, traps, platforming challenges, and climactic showdowns.
• Replay and Mastery: Hidden secrets, branching paths, and combat variety encourage experimentation, exploration, and speedrunning.

Guinea Pig Gunner is a side scrolling shooter unlike anything you've ever played. Fast movement, a deep arsenal, aggressive enemies, and layers of replayability combine into a fresh, high intensity action experience.