The story involves an intergalactic robot called Maxcyber inviting mighty robots for the King of the Robots tournament with promises of great wealth to the winner.
After two collaborations with Uchu Mega Fight, a 16-bit sequel called SUPER ROBO OH was announced in 2022 with Uchu's lead developer Uchuzine assisting Foxy Boxy as one of the graphic artists.
In August 2023, a fully-fledged crossover sequel titled ROBO OH Vs. Uchu Mega Fight with tag team gameplay was announced
during a live event. It is developed in PICO-8.
This game features the following tropes:
- A.I. Breaker: As of version 2.21, a blocking CPU will always drop their guard if Dimcyber's Dim Hacker is used to end the combo attempt.
- All Just a Dream: The true ending reveals the player was just a boy playing with action figures the whole time.
- All Your Powers Combined: Maxcyber's moveset is taken from all the other playable characters except for Uchuzine and Shippooh but with a strange lack of any light special moves. As Dimcyber, however, he has a powerful moveset of his own that revolves around the battle axe that he normally uses to mimick Autofive's super move.
- Background Boss: Giant Shippooh appears looming at the background unlike any other character in the game and attacks with a fixed pattern of turret fire and punches. Maxcyber was also portrayed very much like this in Uchu Mega Fight as part of the collab between the series.
- Big Bad: Maxcyber, the tournament organizer who wants to steal the other bots' powers.
- Breaking the Fourth Wall: Dimcyber's ending is just him acknowledging the player as his second in command.
- Character Customization: You can upgrade your character's stats after each fight in Story Mode. Those are rewards from Maxcyber and refusing them reveals the true ending.
- Combining Mecha: Autofive is a Super Sentai mech made up of a helicopter, two airplanes and two cars.
- Combos: The game features combos and has certain rules in place for how opponents can be juggled.
- Composite Character: Shippooh's moveset is a combination of skills from Shippo's three forms in Uchu Mega Fight.
- Cool Crown: Each playable character gets a unique crown upon being declared the King of Robots in the ending.
- Difficulty Levels: The game has multiple difficulties for the CPU and clearing Story mode in Maniac mode is required for a set of Steam Achievements.
- Floating Limbs: Uchuzine and Shippooh have detached limbs just like in their source game.
- Gratuitous Japanese: The "Oh" in the title and in the names of some characters is Japanese for "King".
- Guest Fighter: Uchuzine and Shippo are from Uchu Mega Fight, which in exchange received Autofive and Maxcyber as playable characters.
- Hijacked by Ganon: The True Final Boss involves Shippooh pushing Maxcyber away and usurping the tournament. However, after Shippo is defeated, Maxcyber walks back in and absorbs the powers of the giant Shippooh to become Dimcyber.
- Humongous Mecha: The cast is made up of giant robots. A sense of scale is given when Shippo ejects from the even larger Shippooh upon defeat and runs away.
- Lag Cancel: Dashing while attacking spends meter to interrupt moves and extend combos.
- Limit Break: The Overdrive Meter can by used to enhance special moves, enter a Hyperdrive state to cancel attacks and to perform super moves. A super move will spend the entire meter, dealing maximum damage at 3 bars.
- Not Just a Tournament: Maxcyber lures robots across the galaxy into the King of Robots tournament with promises of wealth to the winner but captures most of them to copy their abilities.
- Production Throwback: Two characters in the cast are based on previous Foxy Boxy games.
- Megastar is a reference to Zodiac DX and the comic series by Aimee Young it is based on.
- Masamioh is a reference to Masami Sushi Ace, a Falling Blocks game with a cooking aesthetic.
- Retraux: The game has a 8-bit presentation faithful to the NES' specs.
- Robot Me: Uchuzine and Shippo are featured in-game as pilots of giant robots designed after themselves.
- Secret Character: A code for playing as Shippooh and Dimcyber is revealed after clearing the True Final Boss. You need to press Down three times on Uchuzine's or Maxcyber's icons, respectively.
- Sequential Boss: Shippooh, Giant Shippooh and Dimcyber must be fought back-to-back. You only get healed for the third fight.
- SNK Boss: Dimcyber is the single character in the cast who wields a weapon in most of his moves. He has great range, a wide projectile that is shot twice when powered up, a command normal that hits three times while draining the opponent's meter and a ton of HP as the True Final Boss. To make matters worse, you must defeat Shippooh's two forms again to get to him every time you lose.
- True Final Boss: Refuse every post-fight upgrade to fight Shippooh and Dimcyber instead of Maxcyber.
- Transforming Mecha: Grandsky is space cruiser shaped like a zeppelin that can also transform into a humanoid mech.
- A Winner Is You: The ending for clearing the True Final Boss is the same for every character and is a short scene that goes out of its way to break immersion by revealing the story was just a boy playing with toys.
- Worthy Opponent: Maxcyber praises the player character if they refuse his powerups, considering them an even more interesting adversary. He takes the player's attitude to heart and only absorbs Shippooh's energy to repair himself instead of stealing the moves of other robots.
