Now to answer such a difficult question as this topic presents, I have to really think about the games that made me feel alive. So, naturally I probably have to throw out ALL the Sonic games, yes even Lake's games that I love to pieces and at one point considered better than the classic series....and I think I'll throw out games like N, Halo PC/CE, and minecraft, even though they made huge impacts on my life, rl and ol...and of course I can't include the 3 games I've tested/va'd/level designed because well that's just not fair.
I think of the games that really challenged my will to press on and stick it to the bad guy. I think of the ones that are so worth replaying again and again, and the ones that have a killer soundtrack and maybe some fun glitches on the side. There are games, and there are experiences. (Also just bought like 6 MGS games so I might need to edit this in a month.)
5. I Wanna Be The Guy (Wall of text incoming)
Why this game? It's hard. It is so hard. Nothing really beats the sense of satisfaction when I can boast to my real life gamer friends and they say "Wait, you beat that game?!" This game took a full three tries over two years or so to complete (just on Hard. I'm not that crazy, but one of those attempts was on Very Hard). Countless...countless! hours trying to crack the pattern to Mother Brain, trying to beat Kraidgief without cheeseballing him, and that blasted dragon! But none of this strife through the spike corridor, the chaser spike wall, the luck that is the Dracula fight, the spiked-wall-man room and all the other platform hell could compare to the final area. Actually the final area wasn't too bad, but the final boss took a solid 7 hours...pretty much straight...of attempts. I think I might have scared the neighbors with my victory yell when I saw that %&$#*&$ bite the dust, on a glitch win, no less. In other news, the music's catchy, got me interested in some older games like Castlevania, and the replay value is pretty rad. One day, Very Hard mode will fall. The game is hard, but fair. It's trial and error for the most part, sure, but it can be mastered with muscle memory and intuition.
I'll add the other four later. It's noon, and I have like 6 weeks worth of school to catch up on.