Friendship is the strongest - S1.E5

Princess Aurora and the three cyborgs in the Queen Cosmos are sucked onto a planet with a crystal palace. The queen abducts Aurora and traps her in the crystal palace. The three cyborgs cannot save her and Kugo returns to Earth where Professor Kitty gives him the Fire Ox weapon. He returns and defeats the crystal monster. Professor Kitty also sent three badges with the inscription, "Friendship is stronger than any weapons".