Ingo can be battled in a Single Battle on the Single Train once the player has acquired a 20 win streak, and on the Super Single Train once the player has acquired a 48 win streak. He can also be battled alongside his brother Emmet in a Multi Battle on the Multi Train once the player has acquired a 20 win streak, and on the Super Multi Train once the player has acquired a 48 win streak. His teams are identical in both Black and White and Black 2 and White 2.
"Thank you for riding the Battle Subway today. I am the Subway Boss Ingo. I will choose the next destination based on your talent. Do you understand Pokémon well? Can you hold on to your principle? Will you go on to victory or defeat? All aboard!"
"Ah. Your battle was not bad at all. However, we seem to have done slightly better than you. We would really like to battle with you again! Please ride the Battle Subway again!"
"Bravo!! Your talent has brought you to the destination called Victory! However, your journey has just started. When you choose your next destination, go full speed ahead!"
Super Single Train
"Welcome! I've been waiting for you! Let me introduce myself... I am the Subway Boss Ingo. What can I see after winning, winning, and winning? Where is my destination? I've kept thinking, and I've learned one thing. That is, you cannot know what happens after winning without winning. Therefore, I will exert every possible effort to battle with you. All aboard!"
"I have won this time, but your talent is very strong! Your tactics...reading... You have great skills. That's right! I would like to battle you again and again! Please ride the Battle Subway again soon!"
"Bravo! Excellent!! I am glad that I fought so hard against a wonderful Trainer like you. That's right! You grow stronger by matching yourself against a strong opponent. Please do your best and run toward the destination, an even higher state."
"I am a Subway Boss, Ingo. The fellow over to the side is also a Subway Boss, Emmet. Will a Multi Battle help us cover each other's weakness? Or will you show your overwhelming power? I look forward to seeing how well you fight. However, it is difficult to win unless you and your partner are in total sync."
"We make a good two-car train, Ingo and Emmet. This time, we worked together toward a victory. However, your abilities are very impressive."
"Bravo!! What you showed us is a spark as Trainers. However, let me say just one thing. Winning against us is a milestone in your life. You can rack up more and more. Please move on toward an even greater goal!"
Super Multi Train
"Let me introduce myself again. I am a Subway Boss, Ingo! Well, there is nothing else to say for the person who comes all the way here. Let's have the greatest battle, better than ever before."
"We, Ingo and Emmet, are a two-car train. This time, we were able to work toward a victory. Well, will you stop here? Or will you challenge us again? It's up to you. But let me say one thing. There is no terminal called End in your life!"
"Bravo!! Really excellent! The best combination of you and your Pokémon. It is incredible! When you and someone else combine, your engine powers something special! If you like, please challenge us with a different combination."
"I'm a Subway Boss. My name is Ingo! Usually, I'm having Pokémon battles in the subway that departs from Gear Station."
"Having a battle in a place like this is a little irregular, but this must've happened for a reason. Battling in a different place will let me see different scenery, and I might learn something, too. Now, Emmet, if you have something to add, please!"
"Bravo!! What you showed us is the spark of Trainers. However, let me say just one thing. Please move on to an even greater goal."
After being defeated
"Bravo! The combination of you and your Pokémon is truly fantastic!"
"Yes! Definitely! Next time, please ride the subway and battle with us there! Well then, we're off! All aboard!"
Ingo and his brother reappeared in Lost at the Stamp Rally!, where they helped a young girl, Erina, locate her lost Axew. Afterwards, they rewarded Ash and Cilan's good deed by having a Tag Battle against them. Despite Ash and Cilan pushing their hardest, they were finally defeated when Ingo's Chandelure stopped their Pokémon with Psychic, so that Emmet's Eelektross could finish them off with Thunderbolt.
Ingo, along with Emmet, made an appearance in A Surface to Air Tag Battle Team! as part of a fantasy made up by Soren, who boasted that both he and his brother Rocko had beaten the Subway Bosses in a Tag Battle. However, this claim was quickly disproved by Rocko.
Ingo debuts in the Black & White chapter. He, along with his brother Emmet, is first seen walking around Gear Station. The are later properly introduced as the Subway Bosses for the newly-created Battle Subway to Black and White. According to the Mayor of Nimbasa City, they were recruited by him because of their strength. White later decides to to take part in a test run of the Battle Subway, which she uses as a way to learn how to become a Trainer.
As the three travel, White is pitted against Virtual Trainers while the twins evaluate her progress. Emmet's love of battling and impatience leads to him constantly ask White to win 20 consecutive battles so that they can have a battle. This behavior scares White, which forces Ingo to repeatedly apprehend his brother and drag him away.
Sometime later, the train arrives at Anville Town, the final stop. At this point, White's skills have improved to the point where she can battle one of the Subway Bosses. Ingo has a battle with White while Emmet referees. The battle ends in a tie, much to Ingo's frustration. After stepping out for a bit, White returns with Bianca, a friend of hers. White asks the twins to take her to Castelia City so that she can help Bianca with her troubles. Afterward, White returns to continue her training.
After more traveling, White finishes her training and goes her separate ways from the Subway Bosses.
Klinklang is Ingo's only known Pokémon. It was first seen next to Ingo while White was testing the Battle Subway. During Ingo's battle against White, Klinklang was paired up against White's Servine. By jamming its minigears with leaves, White gained an opening to attack. However, when Servine attacks, both Pokémon are knocked out from the attack, making the battle a tie.