Daiku no Gen‑san: Robot Teikoku no Yabō

Daiku no Gen‑san: Robot Teikoku no Yabō is a platform game in which the player controls Gen, a hammer‑wielding carpenter who must clear a series of side‑scrolling stages filled with robotic enemies. Gen can jump, crouch, swing his hammer, and hold it overhead to guard against attacks. Each level is completed by reaching its endpoint, with several stages concluding in boss encounters.

Gen can withstand up to five hits, and enemies occasionally drop items such as rice balls to restore health, hard hats that provide one‑hit protection, and temporary hammer upgrades that increase attack power. Some stages alter the standard movement, placing Gen on a transport block that moves automatically between anchor points, or shifting the gameplay into a horizontal shooter sequence where Gen and his support robot fire rockets while avoiding enemy projectiles.