Coliseum Challenge Duel Powerful Enemies and Level Up your Keyblades!

Coliseum Challenge Duel Powerful Enemies and Level Up your Keyblades! is a series of quests in Kingdom Hearts Unchained χ / Union χ. Each quest only contains one enemy. Every fifth quest gives the player 100 Jewels for completing an objective, and certain quests give the player a Power Gem, Speed Gem, or Magic Gem] for completing an objective. In the English version, it was available from October 3 to 9, 2016.

• One-on-One ★: Round 1/10
• One-on-One ★: Round 2/10
• One-on-One ★: Round 3/10
• One-on-One ★: Round 4/10
• One-on-One ★: Round 5/10
• One-on-One ★: Round 6/10
• One-on-One ★: Round 7/10
• One-on-One ★: Round 8/10
• One-on-One ★: Round 9/10
• One-on-One ★: Round 10/10
• One-on-One ★★: Round 1/25
• One-on-One ★★: Round 2/25
• One-on-One ★★: Round 3/25
• One-on-One ★★: Round 4/25
• One-on-One ★★: Round 5/25
• One-on-One ★★: Round 6/25
• One-on-One ★★: Round 7/25
• One-on-One ★★: Round 8/25
• One-on-One ★★: Round 9/25
• One-on-One ★★: Round 10/25
• One-on-One ★★: Round 11/25
• One-on-One ★★: Round 12/25
• One-on-One ★★: Round 13/25
• One-on-One ★★: Round 14/25
• One-on-One ★★: Round 15/25
• One-on-One ★★: Round 16/25
• One-on-One ★★: Round 17/25
• One-on-One ★★: Round 18/25
• One-on-One ★★: Round 19/25
• One-on-One ★★: Round 20/25
• One-on-One ★★: Round 21/25
• One-on-One ★★: Round 22/25
• One-on-One ★★: Round 23/25
• One-on-One ★★: Round 24/25
• One-on-One ★★: Round 25/25