Maybe you could show the attack area of the key with first input and use attack at the second input. Game is cool but randomly missing hits because I couldn't guess where the B`s holes would be felt a bit unfair.
Hmmm it's clever idea! I would defenetly use it if game was turn based. Okey, it IS turnbased , but with a limited time on turn. And that forces some chaotic desitions. And thats good for me )
Of course it would be ideal if players knows where exactly they attack, but that will come with practice it seems.