Now's your last chance to play Super Smash Bros. Brawl or Pokemon Black and White with faraway friends, as Nintendo plans to shut down online services for many Wii and Nintendo DS games on May 20.

The so-called "Wi-Fi Connection Service" covers online play, matchmaking, and leaderboards for over 200 Wii games and over 200 Nintendo DS and DSi games. Nintendo is also shutting down voice chat through the Wii Speak channel. Of course, all games will continue to function offline, either for single-player or local multiplayer.

In a statement to Kotaku, Nintendo said it it shifting focus to "readying our Wii U and Nintendo 3DS matchmaking services for upcoming games such as Mario Kart 8 and Super Smash Bros."

For a full list of affected games, visit this section of Nintendo's Website. (A Nintendo press release only lists first-party online games, but many other third-party games will be affected, including all Call of Duty titles.)

For now, other online services for these older consoles will stay active, including Netflix, Hulu, YouTube, the Wii Internet Channel, the Nintendo DS and DSi browsers, the Wii Shop Channel, the DSi Shop and Pay & Play.

Nintendo has previously culled some of the Wii's online channels, including the Forecast Channel, News Channel, Everybody Votes Channel, Nintendo Channel and Check Mii Out Channel.

It's not uncommon for console makers and publishers to shut down servers for older games. Microsoft pulled the plug on Xbox Live services for the original Xbox in 2010, while Sony has periodically been shutting down online services for older Playstation 3 games such asMAG, Gran Turismo 5 and Resistance. Electronic Arts has also turned off online services for numerous games over the years. As more new console games are designed to lean on the cloud or become flat-out online only, Nintendo's games shutdown is your routine reminder that they won't last forever.