An exhilarating action simulator where the invincible Tri-Zenon defeats enemy robots in Xeno Palace, where the Earth has begun its invasion! The system allows you to defeat enemies one after another, completely changing the difficult image of strategy games up to now, so it's just fun! Complete commands such as annihilating all enemies to clear the stage! The story progresses each time you clear a stage. The conversation scenes between stages are full of gags that will make you grin, making it fun for fans and those who are unfamiliar with Invincible King Tri-Zenon. Don't give up even when you're in a pinch! If you match pictures with the slot that activates when you're in a pinch, you can aim to increase your fighting power, so you may be able to turn the situation around in an instant! ! You can enjoy high-quality graphics and charming characters that are close to those of the TV anime anytime, anywhere, because it's a Game Boy!