In Sword Melter, your primary objective is to defeat enemies and bosses while collecting resources to upgrade your weapons. You can also complete challenges that test your skills and progress through various levels.

To upgrade your weapons, collect the necessary resources during battles. Then, navigate to the upgrade menu in the main screen, select the weapon you want to enhance, and spend your collected resources to power it up.

Use a combination of dodging and attacking strategies. Learn enemy patterns and attack timings, and utilize special skills effectively. Upgrading your weapons prior to facing tougher foes also greatly assists in overcoming challenges.

To unlock new levels in Sword Melter, you must complete previous levels and defeat the bosses at the end of each stage. Progressing through levels typically requires achieving a set number of victories and collecting key items.

Special skills are unique abilities that can turn the tide in battles. To use them, you must fill your special skill meter by dealing damage or taking hits. Once full, tap the designated button during combat to unleash your skill and gain significant advantages.