Heart attack is a defense game. Players takes it's place as hearts defense system in persons body that has infected by mysterious virus which affects heart. Goal is to keep all threats away from the heart as long as possible. Time is shown as lived human years. Difficulty is continuously increasing as the defended person gets older and virus gets stronger. Virus has different forms some are strong, some moves faster and some are hard to detect.
Learn all the virus types and focus strongest types.
Find boosts which you can use to defeat stronger viruses.
Use your collectible boost on right time.