Haha yeah, yeah the difficulty definitely needed some tweaking and fine tuning, but I ran out of time at the end.
One tip I have is not concentrating on all of the arrows. If you only concentrate on 3 of them instead of 4 it becomes easier.
Also if you use a controller if you have one, I think it's much easier than using the keyboard.
Yeah things like level select and adding lives, it helps out at lot.