Is it possible to earn free hero Bux? Melissa Updated February 12, 2018 16:50 Follow Yes, you can watch short video clips to earn free hero Bux (where applicable). Related articles I am stuck on a level, can you help? Can I refill my energy meter for free? What is the 24 hours unlimited energy in-app purchase? What is the limited time event? Something happened in the game that’s not realistic. Why is this? Comments 0 comments Article is closed for comments.