Update - Problem solved:
https://hf-empire.com/forum/showthread.php?tid=380

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I can't put ref code
I tried more than 100+ times....

Hi there, 
Now i completed act 4 and i got yaga but i dont like him so i need leo
Can anyone tell me in which act or in which level leo will unlock??

Thank you
Hava a nice day

tpramar

Hero Fighter Empire main site is live!

For more information check here.

Have fun. :)

Hero Fighter X has been updated for Android (13-11-2015) and iOS (16-11-2015).

Change log (android: v1.08 - v1.09 | iOS: v1.05a - v1.09):

• Bug fixes;
  
• Full version replaced with 2000 gem pack (current full version players not affected);
  
• Video advertisement removed for gems [s]and full version[/s];
  
• Removed the energy unit refill timer that was 12:00 minutes;
  
• Decrease the cost of energy – 2 gems required to fill a unit (earlier 3).
  

Changelog provided by @Hellblazer.

Excuse me everyone i have downloaded and installed hero fighter x on my Samsung Galaxy Gt-S5301 but when i play with it the screen goes black and when i press the attack button i see lucas upside down slashing very high zoomed (sometimes).So can anyone please help me with this problem.