The SNES classic role-playing game has made its way to a number of formats--in North America--since its original 1995 release: Square nearly ruined it with load-times in the Final Fantasy Chronicles collection in 2001, while Crono and his allies ventured through time on the Nintendo DS in 2008.
The ESRB listing doesn't provide any detail on the game. We presume the listing points to players getting Chrono Trigger as part of the PlayStation Network's growing crop of "PSone Classic" titles.
If the classic game [with bonus FMV sequences added in subsequent re-releases] is coming to the PSN, it might also point to the game arriving on the North American 'Virtual Console.' Chrono Trigger is planned for an April 2011 release on the Japanese Virtual Console, according to Siliconera.