Winter's Tail: How One Little Dolphin Learned to Swim Again ROM Download for Nintendo DS (NDS). Winter's Tail: How One Little Dolphin Learned to Swim Again game is available to play online and download only on Roms Games. Winter's Tail: How One Little Dolphin Learned to Swim Again ROM for Nintendo DS download requires an emulator to play the game offline. This Game is English (USA) Version and is the highest quality available.