Inventor is a verry busy man, I was lucky enough he found the time to audit my king of the crypto hill game contract some time ago. had some chats with him about the most obvious exploits out there.
Imo there should not be an exploit that I know of atm. The language is verry tricky sometimes so you never know. I hope Inventor will see what I created and take it upon himself again to check it out if he wants to.