Clash in the Cloister

"Clash in the Cloister" or "Crossing the Galaxy Corridor!" (銀河回廊をわたれ！) is the 66th episode of Sonic X.

Plot
The Blue Typhoon is pulled into the Intergalactic Cloister, a strange region of space. Eager to do battle, Metarex Commander Yellow Zelkova launches an attack on the Blue Typhoon. Sonic and Knuckles team up to fight him, finding that Zelkova is too powerful for them. However, they then trick him into freeing the Blue Typhoon from a formation of space stalactites, and put him in line with the Sonic Driver cannon. They fire, and Zelkova is thrown back, but not destroyed. They then escape as he swears vengeance.