Heri to obake to suisho to

Heri to obake to suisho to is a simplistic game where the player guides a helicopter through a maze while avoiding monsters. Sometimes doors blocks the way for the player. These doors can be unlocked by collecting all of the treasures since the last door the player passed. There are Four kind of monsters in the maze: sheep, fire monsters, ghosts and a big dragon that guards the exit. The only monster that the player needs to kill in the game is the end of level dragon, all the others can just be avoided. Touching a monster will drain the players health and once it's down to zero it's game over. The game has only one level.