Sure, here's an example of a fighting game about Oliver, Marcos, and Isabelle. Please note that this is a simplified implementation and uses simple pictograms for characters and levels. You will need to replace these with actual graphics to make it visually appealing.
In this game, you will be presented with a training mode where you can select a character from 55 available characters using their pictograms. After selecting a character, you will proceed to a level selection screen where you can choose one of the 34 available levels represented by their pictograms. Finally, the fight will start, but the actual fighting logic has been omitted for simplicity.
Again, please note that this is just a basic implementation, and you will need to enhance it with additional functionalities, graphics, and gameplay elements to create a fully-fledged game.