This is the result of a strange idea, yes i wanted to gain some experiences before creating my own game
I use UNITALE, this software help A LOT in the creation process of Undertale battle system I recommend you to read the reddit, which explain what Unitale is : https://www.reddit.com/r/Unitale/comments/417zbq/new_to_unitale_read_this_first/
THIS IS A FAN BATTLE, I DO NOT OWN THE MUSIC NOR UNITALE