Hello, there was new art implemented, including all playable characters, all enemies and bosses, including new playable level 20 evolution forms. I also added in new assets for the arena zones and props for the battle levels. The Claim souls guy is also cool and I like this upgrade menu system more than previous one because in this it's more interesting than just buying upgrades.
For clarity, this was a fork from a previous project I did (Bikini Bottom Survivors), so the bulk of the project logic was ready to go.