How do Chrono Trigger's SNES and DS versions differ?

Solution 1:

Here is a post on Gamespot listing some differences. Some examples:

• "The addition of a DS style combat system, which simply moves the commands from the top screen into the bottom screen, clearing up the screen a bit"
• "New items. If you thought Rainbow was ridiculous there's a new sword for Crono that's more powerful and has a 90% critical hit rate."

Solution 2:

The main differences are:

• All the PS1 version movies are included
• New control scheme for DS
• Minimap added
• Encyclopedia added:
  • Items
  • Monsters
  • Art
  • Maps
  • Endings
• New content:
  • Several new dungeons and sidequests
  • Monster battle arena
  • 1 new ending
  • Items
  • Monsters & Bosses
• New translation