I've been playing a lot less TF2 lately (mostly because I'm mapping, as well as the season being over for 6s), so I've gotten a chance to play other games a bit more. While I enjoy playing Smash (can't wait for the switch one), Mario Kart, and various other local multiplayer games, there's one game that nobody ever talks about that I played a ton as a child:
Tony Hawk Downhill Jam*
*on the Wii: I didn't know there was a DS port until today
Based off the stage from one of the Pro Skater games, this game has hours of gameplay in the story mode alone, even if you nail every mission first try, as well as 8 unique long stages (10 if you're using DS), multiple modes to play, tons of replayability, and mediocre motion controls. It gets consistent 69% from multiple review sites which, from experience, I agree with. Regardless, I played this for years as a kid, both on my own and with my friends.