My first experience with God Hand was when my roommate in college picked it up one evening on a random whim. He started playing it around 11pm and the beginning seemed sort of bland and clunky so I ignored it and went back to playing WoW (*shudders*). The morning I had to get up at 9am for class and as I was leaving the apartment I saw that he was still playing in the living room, even though he had class soon too. Later, when I got back in the evening, he was still in the living room playing God Hand.
I asked him, "Dude, didn't you have class today? Did you stay home ALL DAY playing this?" He turned around to look at me, seemingly unaware that I was ever there until I spoke up. His eyes were bloodshot and his mouth slightly agape, and he stared right through me into the unending void. Without speaking, he bid me to take a seat by his side. Curious, I took a seat, and he returned his gaze to the screen and continued where he had left off. Since there is no way to possibly describe what I experienced using words, just watch this:
http://youtu.be/6s544sFja5k?t=7m15s