The developers intended players to unlock characters by:
Unlocking all characters in Hero Fighter X (HFX) traditionally required either grinding through the Story Mode or using referral codes and gems. However, because the official servers and gem systems are no longer active, the method for "unlocking all" depends on which version of the game you are running. Official Progress Unlocks Hero Fighter X Unlock All Characters Download
The balanced protagonist. Great for beginners and pros alike. The developers intended players to unlock characters by:
: You can earn gems through daily rewards and missions, which can then be spent to unlock individual heroes. Risks of "Unlock All" Downloads and APKs Hero Fighter X Unlock All Characters Download