Purchasing adds money, All Specials available after 5 levels (1 unlocked per level), instant special cooldown, Unlimited ammo, grenades, oils and spikes. You can upgrade the health as much as you want.
Speedboat Shooting Hacked
yes, you have a speedboat, and yes, you will be shooting! You are in the open sea facing an army of enemies and you have to ride your speedboat while taking them out at the same time.