Do you need all of the Soul Contracts to fight King Dice in Cuphead?
The short answer is “yes” and it even says so in the lyrics of his song
“Bring me those contracts, c’mon, bring ’em to the King!
If you haven’t finished your task, haven’t worked assiduously,
No, I cannot let you pass, don’t you mess with me!”
So you quite literally can’t get to him unless you have all the contracts ready.
Would it be possible to infiltrate Divine Beast Vah Naboris without the Thunder Helm?
It’s quite possible to do this because its lightning spec allows this no matter if you fly or drop your way in. The only way you can get in is to use a cheat to teleport in or use a damage migitation cheat which is going to give you countless attempts to try to get in. If you somehow manage to do this without cheatsm please share your result because no one has been able to do it before. Everything’s scripted so if you even try to fly over it you’ll get shot. Stealth armor won’t do it too. So the only way is to set off the defenses