Have arrow keys with good tactile feel? try this: Hexagon

Did you remember when you're playing an old school game which is ridiculously hard but at the same time get your adrenaline going when you nail a blast. Basically those games are going beyond the capacity of human-being at their most difficult stages, and even go though the 1st stage the most easiest is a hard job.
Yes, this game is exactly in the same category with those diffused-in-a-sweet-memory old-school games.

Hexagon

I just found this browser game in the verge article(Play This: Hexagon).

Let's give it a try and tell me your score!!
But I'm not pretty sure that playing this with your big 27" display is in compliance with the health standard of your country. So plz be sure not to overly zoom in!!
Fortunately or not Terry haven't yet released iOS app of this game, so you don't have to worry if you would see someone who are knocked out by himself with holding iPhone, or I should say iPad, in his hand.