I played the windows version. Maybe it's because my keyboard. I'll try to play it on another device.
Edit: Yup, it was my keyboard. I played it on my laptop and it moves well. I think it's time to buy a new keyboard.
Ah, okay. You really had me scratching my head with that one.
Just so happens that I also had to replace my keyboard while developing this title. The Right Arrow key didn't register input anymore, which once I understood what was happening, didn't seem like the hugest deal, but I found it made coding pretty much impossible.