You are tasked with surviving 15 rounds, each lasting longer than the previous one. Upon completing a round, a new set of attacks becomes available for purchase in the shop. However, you can use a special button to change the current set, spending a couple of coins.

With each passing second, enemies will become more challenging, and their numbers will increase. Survive until the 15th round and defeat the main boss. Well, if things get really tough, use the button in the bottom right corner of the screen to wipe out all enemies! (Note: this does not affect the boss.)