Cyborg Kuro-chan EP53 - The Message From Space

Suzuki receives a message from an alien trio. He and his class go on an unexpected field trip to a space station with help from Mi, Go and Kotaro, as they plan on contacting the aliens. As they enter the city Kuro sees them as a threat and heads off to fight them. Chaos continues as Suzuki peacefully talks with the aliens and Kuro attacks them.

This was the last episode to be fully animated using traditional animation.