I don't know if this is intended, but every time Arson hit the wall, he unattaches his tongue from the walls. This fact alone makes this game a little too frustrating to control.
Can't really blame Arson though he has no legs and it probably hurts to bang against the wall.
I almost gave up, but i didn't want to disappoint Arson so i made it to the end, and seeing his smile made me satisfied.
Also totally did not discovered easy mode right after complaining it being frustrating