1.) GoldenEye 007 (Still my favorite game to this day)
2.) The Legend of Zelda: Ocarina of Time
3.) Super Smash Bros.
4.) WWF No Mercy
5.) Super Mario 64
6.) Star Fox 64
7.) Mario Kart 64
8.) Resident Evil 2
9.) Mario Party
10.) Donkey Kong 64
11.) The Legend of Zelda: Majora's Mask
12.) Perfect Dark (I really preferred GoldenEye over this for some reason)
13.) 1080 Snowboarding
14.) Wave Race 64
15.) Blast Corps

1) Ocarina of Time

2) Paper Mario

3) Majora's Mask

4) Super Mario 64

5) Mega Man 64

Zelda:OOT
Super Mario 64
Jet Force Gemini
Blast Corps
Goldeneye

Super Mario 64
Mario Kart 64
WCW Wrestling: Nitro (I think)
Golden Eye
Paper Mario

1) Zelda: Majora's Mask
2) Ocarina of Time
3) Mario 64
4) F-zero X
5) Perfect Dark

In no Particurlar order

Space Station Silicon Valley(Very underappreciated puzzle game, nothing out there like it, all puzzler fans must try this!)
Goldeneye
Mario Kart 64(The Best Kart on a console ever)
Blast Corps(Please Rare make a new on on XBL/PSN!!!!!)
WWF No Mercy(Best Pro Wrestling Game EVER!)

I cant contain it to 5 sorry so the honorable mentions go to:

Mario 64
Paper Mario
Zelda OOT
Starfox 64

mine are as follows:

1. 1080 snowboarding
2. Goldeneye
3. Perfect Dark
4. Ocarina of Time
5. f-zero x

SM64
Pokemon Snap
Banjo Kazooie
Goldeneye
MK64

1. Mario 64
2. Goldeneye
3. Paper Mario
4. Mario Kart
5. Starfox

1. Ocarina of Time
2. Banjo-Kazooie
3. Winback
4. Mario 64
5. Paper Mario