Episode 17, "Red and Blue's Battle": The entire relationship between Alien Standel Redle and the old lady that takes care of him. It goes so far that although Redle came to Earth with similar goals as the villainous Abolbus, his time spent with the old lady convinces him to make a Heel–Face Turn and help GUTS stop Abolbus.
Episode 25, "The Devil's Judgement" is at the top of this list. When Tiga is at his lowest, a huge crowd of people gather together to offer him any source of light they have. This gives Tiga the energy he needs to get back up and defeat Kyrieloid.
Episode 32, "Zelda Point Defense," has the ending where it's revealed that Shiela just wanted to get rid of the Zelda gas that had killed her owner and rendered her an abomination. The ending shows the Gutswings and Tiga transporting the mutated cockatiel into space, where she undergoes a transformation into a beautiful phoenix hybrid and floats off. Years later, Ultraman Fuma confirms in a voice drama that Shiela is still flying through the universe and was last seen battling a Diolius.
Episode 45, "Eternal Life": While a majority would rather Tiga suffer than lose the Gijera pollen, a boy tells his father to burn Gijera because he feels bad for Tiga. The rest of GUTS also decide to help Tiga, willing to risk facing humanity's resentment if it means doing what's right.
Episode 52: Children from all around the world give their light to Tiga when it seems all hope is lost, allowing Tiga to gain a Heroic Second Wind and vanquish Gatanothor.
