1. As diver, upgrading an item with a new one refunds 50% of the original weapon. Example: Buying the starting $500 pistol and upgrading to a $1000 rifle costs you an additional $750 cash ($250 comes from the pistol).

2. However, upgrading a specific pistol to duel wield only costs the price of an additional single pistol. You save money. Example: Buying the $500 pistol and going for the $1000 duel wield pistols only costs an additional $500, instead of $750 like in the previous example. (However not 100% certain on this. Also, I haven't seen any other straight upgrades that save money.)

3. Sharks take 50% less damage to the tail. I'm not sure at which point the tail begins.

4. The two starting pistols both do the same damage. IMO the 5 round P-11 Pistol should always be chosen with flares. Not sure how much shots are required to kill after the newest update.

5. --Outdated info about spear gun.

6. Each loot/gold piece gives $50 when cashed in. STEVE gives $1000 on opening a safe.

7. Weirdly, STEVE drops free gold when he is hit by a shark. Divers do not lose money from this. (Maybe you get less of a bonus when he opens the safe? Needs testing.)

8. Tagging weapons and the Tranq rifle seem to have significantly slower bullet velocity. Not 100% certain on this.

9. Mines detonate instantly on impact with a shark, resulting in a kill. However, if the shark passes very close by it, it will detonate after a delay. Divers can also shoot mines to detonate them.

9. Instead of sprinting as a shark from spawn, it may be faster to do small lunges with a small delay between each lunge- a small amount of stamina regens between each lunge allowing a further overall distance. For extra distance, use your last bit of remaining stamina to do a long lunge.

10. Negative stamina does not seem to occur for sharks. Divers also have their own hidden stamina bar- they can do 2 or 3 quick dodges in succession if stamina is saved up. I'm not sure how diver stamina works exactly.

11. The IGNORE PAIN evolution for sharks (the perk where stamina takes damage before health) can take 50% less damage than health. Thus, stamina takes twice the damage than health would. Example: The starting pistol takes 25% of health. However, it takes 50% of stamina with one shot.

12. Adrenal glands seems to regenerate stamina heavily (Perk where Stamina regained on being damaged). From brief testing, two pistol shots instantly gave full stamina. Combined with Ignore Pain, the overall damage to stamina was about equal to a hit on health. So instead of the 50% damage taken from a pistol on stamina, it takes 25% damage.

13. Instead of throwing flares directly at the ground, try throwing them straight upwards for some extra visibility and hang time.

More to come...