Don't laugh at me...Kingdom Hearts.
The first game I ever beat played from start to finish was Kirby's Dream Land for the Game Boy. It had such a great ending and it immediately encouraged you to play the game again in "a new adventure". In that mode, most of the enemies, with the exception of the bosses, changed into different characters. I managed to eke out that mode as well and got another spectacular ending out of the deal. The game left such an impression on me by having such great music and no dialogue. It managed to be subtle and yet fill you with such cheer and happiness. I hope it makes a trip to the 3DS E-shop sooner than later.
" Glover. For those of you who haven't heard of it, it's essentially Jimmy Hatcher and the Giant Egg. With a glove instead of a Jimmy and a bouncy ball instead of an egg. "You mean Billy Hatcher :P
" @H2Oyea: Why would someone laugh at you for playing Kingdom Hearts? The game is godlike.I've been met with laughter and insults when mentioning my fondness of KH in the past. Not most of the time, but it was still pretty common.
As for me, I have no clue to be honest with you. Maybe Super Mario Bros. 2? "