It was a well presented game with good music and visuals. My main complaint is with the controls, they are pretty difficult to get ahold of.
You should just have him grind automatically and get rid of V. Because why wouldn't you wanna grind if there's only a pole there? The player should want to interact with the item that's passing by when only 1 item passes at a time.
Also you could get rid of C and just make flip tricks the default for arrow keys.
And then remove holding Z button to go faster and have it do that automatically.
I think this would make it more accessible. For me at least it was a bit difficult to control and remember what key did what