Favorite Handheld Game?

Handheld gaming was a huge part of my childhood, just the other day I had found my old Gameboy stash, which was pretty much gold to me when I was a child.

If I had to pick the top 3 handheld games I had the most fun of, they would be these:

Mario
Legend of Zelda
Pokemon

What would your top 3 from your childhood be?
*No need to post the exact version of the game, since there are lots of different variations.

 

its not a very old game but i gotta say pokemon soulsilver verson i found it not too long ago had over 600 hours of gameplay on it (what a great summer)

 

Pokemon Emerald and Ruby, I spent hours on those on the old Nintendo Gameboy Advance SP, loved that

 

pokemon yellow, red and blue

 

There is already a thread about this, http://www.sythe.org/handheld-gaming/1457246-whats-youre-fave-handheld-game-2.html