Merge Monster Attack

Press on the screen to pick your initial weapon. Slide similar weapons together to merge them into a stronger version. Think carefully about which weapons to merge, as each opponent group requires a different approach. Protect your base by launching at enemies before they reach it. Pay attention to enemy abilities, as some may demand particular weapons to defeat. Advance through levels by beating all enemies, and gain new weapons as you go. Modify your strategy as the game becomes more challenging to last longer waves.