About Coinblade Colosseum

Fight fantasy beasts in a pixel arena, win gold from the crowd, and spend it on gear to survive tougher fights.

On a computer: A/D move, Space jump, J slash, K block, E buy in the shop
On a phone: Left stick to move, buttons for slash, jump and block, tap shop items

Emilio described this game in a sentence on OhMyGames and the AI built it. You can make your own the same way, free to start.