I'm so happy dudes!!!!!! I successfully bound Dungeon Hunter 3 on my USB STICK (ADATA N005 32GB). The game works like a charm mates!! All you need to do is to UNCHECK "handle usb connection", this will keep the binds alive.
This flash drive is USB 3.0 and it's super fast, as I discovered from transferring files from my PC to the phone, but I'll guess the OTG cable is somewhat limiting the speed due to it's USB 2.0 connector. Anyway all is working flawlessly, now I can save even more storage space on my S2 and this method should work for all games without exception. Please like and share this post as much as you can, so other people know this way is working.
I completely love Directory Bind, there are some guides out there how to run games from usb stick, but there are so much complicated - you have to type commands in TE, to use other specific apps as Paragon i.e.bla bla bla.
This is the BEST APP EVER!!! THX slig, you' re a genius mate, as well Android is the best ( mobile) OS according to it's unlimited possibilities.
Try to run some game from usb drive on IPhone...muhah. Poor Apple.
OMG clapping mates, clapping!
Phone: GT-i9100 16GB+32GB mSD cl.6+32GB USB 3.0
Rom: KitKat 4.4.2 RR v5.0.9  + 4.4.2 AOSP NeatROM v4.2 
Kernel: DorimanX v10.43v105 
"Now let's see...what to flash today"...LMAO
Press "Thanks" if I helped you.
Some XDA poetry.