Mario 3
Chrono Trigger
Sonic the Hedgehog (1991)
I consider these my top 3 not because they're the best, but what they meant to me when they released. Each game was so important to me when they came out. Mario 3 and Sonic were so influential because of the gameplay and presentation. Chrono Trigger was my first JRPG and was the first game soundtrack I became obsessed with.
There are a lot more but others include Halo 2, Unreal Tournament, Team Fortress 2, StarCraft, Age of Empires II, SimCity 2000, Link's Awakening, Wind Waker, Super Mario World, Super Metroid, and Metroid Prime.
Good, worth the price if you don't want or have emulation as an option. There were bug fixes after a rocky start and is based off the DS version. Other reviews will say the DS version is a "definitive version" because:
The PC and DS versions also feature a new English translation. Fans of the original (i.e. me) will notice the difference. The SNES loyalists will be the biggest detractors for this version. But I don't think there's a substantial argument against newcomers playing this port other than bias and nostalgia.