A special two-part episode that aired between episodes 24 and 25 of Dr. Slump: Arale-chan.

Extra bits meant to add to the Blue Seed story. Episodes 1-13 are extras shown on the video releases of Blue Seed in Japan. They take place after every other episode, such as Omake 1 follows episode 2. Episode 14 is an extra featured with OVA Blue Seed 1.5.

The year is 2755. As a result of a system malfunction, the cargo ship XeBeC goes off-course in a warp gate and ends up within the orbit of the distant planet Garaga. After crashing on Garaga's surface, the crew must find ways to survive from hideous monsters, rabid ape soldiers, and a race of mysterious psychics.

According to the official website, episode 4.5 of of Ikoku Meiro no Croisée will be included in the third volume of the Blu-ray & DVD. The episode streamed for a limited time on ShowTime, the official online streaming site for Ikoku Meiro no Croisée.