Thank you for your feedback.
Point 1: I have added a health system for players in the upcoming update, which will be ready for upload after the voting ends. Players will now receive a set amount of damage instead of facing instant death.
Point 2: I will also be reviewing hitboxes. Currently, when the tar monsters spawn, they won't damage the player for about 2 seconds. This was a quick fix to prevent random instant death when they spawn directly beneath the player. Previously, there was no boundary, which allowed players to walk into the emptiness of space. This has now been fixed; if you venture too far out to sea, sharks will attack.
I hope you come back and look at the improvements when voting period ends