Perhaps I didn't express myself clearly. What I meant was that when firing the corn cannon during the endless battle, the center of the corn cannon needs to be aimed at a certain grid on the field and clicked before firing. However, the priority of the replanted version of the coin is higher than that of the cannon, which will cause the coins on the field to hinder the firing of the corn cannon. It is necessary to order all the coins before firing the corn cannon. It does not mean that the firing of the corn cannon requires gold coins in the original Plants vs. Zombies game. Even if there are coins on that grid, it does not affect the firing of the cannon, because the priority of the cannon is higher than that of the coins. Because there will be a lot of coins falling on the endless field, it will always be obstructed by the coins on these fields if you want to fire a cannon while playing Endless.