Amazing game. Art is peak. Some places do lack vfx and sfx, like the cannon shot but it is understandable. Game play loop is rly solid. As one person mentioned bellow, eventually you run out of cookies (tho i was lucky i managed to beat the game with 1-2 of basic cookies remaining), but ig it should be fixable probably by having something like "treasure islands" with just pure gold.
But yeah, gameplay is quite engaging with all the time based obstacles and resource balancing. The theme is realized well in both swimming and meta progression