For each enemy killed, you gain score equal to the enemy’s HP.
Clicking ‘next wave’ will yield extra score equal to time remained X 10.
Completing a level will yield 2,000 X life remaining.

World 1  : Gold 1410000, Silver 1340000, Bronze 1270000
World 2  : Gold 1450000, Silver 1380000, Bronze 1310000
World 3  : Gold 2259000, Silver 2189000, Bronze 2119000
World 4  : Gold 3592000, Silver 3522000, Bronze 3452000
World 5  : Gold 6067000, Silver 5997000, Bronze 5927000
World 6  : Gold 6271000, Silver 6201000, Bronze 6131000
World 7  : Gold 9402000, Silver 9332000, Bronze 9262000
World 8  : Gold 9688395, Silver 9618395, Bronze 9548395
World 9  : Gold 15328000, Silver 15258000, Bronze 1518000
World 10 : Gold 21552000, Silver 21482000, Bronze 21412000