This is a 2D horizontal puzzle solving game.

This story is talking about the the A knight Hobson wants to deal his promise to his friend Jocelyn. 
The player can use ←↑↓→ as moving key to move Hobson on the screen, he must walking on the road and dodging all the traps. 
Use space can change to another character which is the shadow of Hobson. The shadow have same moving logic with Hobson. But it can go across any traps but can do limited actions to assist Hobson solving the puzzles.