The player controls the Guardian Knight (or another "hero" in the next level, if desired) in a top-down view. The game has controls in the lower right and lower left corners of the joystick screen. Players who want to advance to the next round of the game must fight a number of enemies, using all tactics and running to lure them to the desired area, but if the battle is not over, the player will be "locked" in an area. Players can also unlock new heroes throughout the game and gain access to new weapons by opening boxes or finding hidden locations. Players initially camp in the forest to rest and heal after completing a stage, but after completing Chapter 1, players land in Paradise Castle, an airport operated by innkeeper Lorraine at her residence. Players can also summon heroes by using gems each time they attempt to do so. Players can also join a guild with other players, which will open up a Raid mode targeting 4 Bosses.

Once Heavehold is unlocked, players will also have access to other game modes such as Colosseum and Arena. These two challenges will allow players to fight with other players. In Colosseum mode, players will venture out with 4 heroes against 4 heroic opponents and the matches are played automatically, but players can rearrange their positions before the battle. In Arena, players can only control one of three heroes and compete online against heroic opponents. If a hero fails, the player will be replaced by a second and third hero until the last hero fails. In Kama-Zone mode, players perform in the same way as in the Roman Colosseum, but move up through the ranks to the Boss level. Co-op mode was added during the 2021 Lunar New Year and features a 4-player Dungeon Dash level.