@qole

These are the steps I followed:

1. remove the "input" from /etc/bluetooth/main.conf
2. replace the "evdev_drv.so" file
3. move "transp" and copy "arrow" file
4. install the bluez-compat from here
5. install libxmuu1
6. paired Razer Orochi BT mouse (was necessary to run hidd --search on terminal first)
7. reboot
8. run ./showmouse

And done.