1. Z to continue dialog, to use items, and attack 2. Arrow keys to move 3. When the heart is red you can fly around 4. When the heart is blue there is gravity 5. Avoid attacks 6. Blue bones only damage you if you are moving 7. White attacks you need to dodge 8. NO MERCY 9. beat SANS boss (ending 1) (hard) 10. sans has 22 stages