While probably inspired by Space Harrier and 3D World Runner, Jinmu Denshou allows the player free control of their movement in all three dimensions in most stages, arguably making it a precursor to 3D third-person action games. It's also unique in including melee combat, though it's difficult for the player to judge the correct depth to successfully hit an opponent with their sword without getting hit themselves.
The platforming is similarly difficult due to the lack of sprite scaling on the PC Engine hardware. These factors along with the generally high and unfair difficulty of other aspects of the game (i.e. how the bosses take an unusually high amount of hits to defeat) have led to the game having a poor reputation, often referred to as one of the worst games in the PC Engine's library along with games like Energy and F-1 Pilot.