![story identification - 90s/00s anime with a kid and his battle robot that he upgrades to fight in arena battles - Science Fiction & Fantasy Stack Exchange story identification - 90s/00s anime with a kid and his battle robot that he upgrades to fight in arena battles - Science Fiction & Fantasy Stack Exchange](https://i.stack.imgur.com/WNdHr.jpg)
story identification - 90s/00s anime with a kid and his battle robot that he upgrades to fight in arena battles - Science Fiction & Fantasy Stack Exchange
I remember there was an old Japanese anime about building small robots to fight each other, but I don't know the name. Does anyone know it? - Quora
![story identification - Anime: Teens fighting with little robots in their hands who shoot round bullets - Science Fiction & Fantasy Stack Exchange story identification - Anime: Teens fighting with little robots in their hands who shoot round bullets - Science Fiction & Fantasy Stack Exchange](https://i.stack.imgur.com/UkC9b.jpg)
story identification - Anime: Teens fighting with little robots in their hands who shoot round bullets - Science Fiction & Fantasy Stack Exchange
![story identification - Mecha anime: main character in a black mecha fighting 4 enemies in a school coliseum - Science Fiction & Fantasy Stack Exchange story identification - Mecha anime: main character in a black mecha fighting 4 enemies in a school coliseum - Science Fiction & Fantasy Stack Exchange](https://i.stack.imgur.com/dld26.png)