Just want to know how much gore is too much gore and if I think its too much could I potentially have two versions/an option to turn gore on and off for my silly little penguin game.
Hm. Good question!
Try to use your best judgement here. Not everyone is open to extreme amounts of gore, but I personally will allow it for the jam.
The "No NSFW" rule is mainly for nudity and extremely grotesque graphic content. If the levels of gore aren't traumatizing, I think you're good.
Adding that disclaimer/warning at the beginning of the game, and/or the option to toggle it on/off, could be a good way to inform players and give them some choice before they dive in.
Hope this helped!