I can only find just max lives and stars not useful because True Arena is a pain in ass not even Robobot Planet has infinite health cheat
I found these.
[Max Lives after losing]
i’m talking about infinite health bar not lives because True Arena 1 death=game over
If health is shown as a bar then you can download and use cheat engine with the “decreased” option every time you lose health until you found the right address, then you can set it to any desired value and freeze it.
If you don’t know how cheat engine works you can try out the tutorial its very easy and everything is visual and interactive.
tried it works but on True Arena it doesn’t for some reason I deal damage myself but it none address effect health bar