Haunted House

Description
Haunted House is a 1-player arcade game for the Electron.
The player has been trapped in a haunted house, moves in the cardinal directions, and can only fire horizontally. The player has limited time to shoot all the ghosts, collect all the keys, and escape through the exit door. The player must avoid hitting red cans or ghosts. The player starts with 3 lives, and gains a life every 4 rooms completed.