For me even after remapping controls to arrows it seems that A and D keys are binded to break free from the grapple attack.
Viewing post in Max the Elf! (V5.16 FREE) comments
You should be able to use something like SharpKeys to do that. It does on-the-fly keyboard remapping: https://www.raymond.cc/blog/download/did/805/
It`s very similar to JoyToKey which maps controller input to keyboard which I use with this game, since I despise keyboard controls lol: https://joytokey.net/en/