Heart Horror is a bullet hell shoot-em-up game. Your avatar is a lot larger than your hitbox - enemy bullets may touch your ship and yet you will not take damage. Only if the bullet touches the very centre of your ship will you lose a life point.

The core of gameplay is to avoid bullets, partially by recognizing and remembering enemy boss attack patterns.

Now go save the world from the Vast Horrors, okay? Thanks.

Controls:

• Arrow keys (up, down, left, right) to move
• Z, A or Ctrl to fire
• Space to toggle autofire
• Hold Shift to slow down time (only on easy and easiest difficulties)

• P or Pause or click outside the browser window to pause
• R to reset the level
• Esc to return to main menu
• F2 to toggle displaying hitboxes (significant CPU load)
• Hold F to increase speed