Viewtiful Joe's core gameplay is similar to a traditional side-scrolling beat 'em up. Taking control of Joe, the player is mostly limited to moving left, right, up, and down on a fixed 2D path. The game contains platforming elements such as the ability to jump and double jump. Combat consists of fighting multiple enemies on screen at once, with the enemies appearing from all directions, including the foreground and background. Joe has the ability to punch, kick, and dodge—which he can do by leaping upward or ducking. Dodging enemies' attacks successfully temporarily dazes them, leaving them wide open for attack.[7] The player has certain number of hit points in the form of "Life Marks" located above the VFX Gauge, which decrease whenever Joe takes damage. Health can be restored by picking up hamburgers.[8]
The Mach Speed VFX Power allows Viewtiful Joe to attack multiple enemies on screen at once.
Viewtiful Joe features unique gameplay elements in the form of Joe's "Viewtiful Effects (VFX) Power", which is designed to emulate camera tricks seen in films.[9] VFX Power is used in both battling enemies and solving various puzzles. These three powers are limited by the "VFX Gauge" located at the top of the screen. Normally, the meter is full, giving the player access to Joe's super powers via his Viewtiful Joe transformation. The meter slowly empties when an ability is in use. Once it depletes, Viewtiful Joe changes to normal Joe, lowering his attack and defense and leaving him temporarily devoid of VFX Power.[8][10] The VFX Gauge automatically refills over time and can also be manually filled by picking up bottles of "VFX Juice". The first VFX Power is "Slow", which slows time, causing the player's attacks to be more powerful, increasing Joe's reflexes, and allowing him to dodge attacks more easily. The second VFX Power, "Mach Speed", allows Joe to move at a faster speed, creating multiple after-images of him when he unleashes a flurry of attacks on all enemies on the screen.[11] It can additionally cause his attacks to envelop Joe in a temporary heat shield, rendering him immune to flame attacks and setting enemies on fire when struck. The last VFX Power, "Zoom In", causes a camera close-up of Joe, powering up his normal attacks, granting him a set of new attacks, and paralyzing all lesser foes in proximity to him. However, any damage dealt to Joe whilst zoomed in is increased too.[9] Any two VFX Powers can be combined.[6][11] The VFX Gauge can be extended by collecting a certain number of V-Films present in each stage.[7] The bar reverts to its normal length when a new stage begins.[8]
Defeating enemies gives the player "V-Points" in the form of small and large coins, while using special attacks gives them "V-Marks", or "Viewtifuls", which can be converted into V-Points. Viewtifuls can be quickly gained by using combos or long chains of attacks.[12][13] For example, while using Slow, striking a dazed enemy sets up all other enemies on the screen for a chain reaction, causing all points accrued during the duration of Slow to be multiplied by the number of enemies struck. If used deftly, the player will accumulate a large number of Viewtifuls due to the multiplier effect called "X-Bonus". Each stage in Viewtiful Joe consists of several interconnected missions, or scenes, that the player must complete in order to advance.[14] When completing the stage, the player is graded on the number of V-Points earned, the amount of time taken, and how much damage Joe took. V-Points can be used between stages to purchase new abilities, expendable weapons (which include the "Voomerang" and "Shocking Pink Bombs"), more health, and health-restorative items.[11][15] Clearing the game on various difficulties allows players to play as different characters such as Silvia, Captain Blue and Alastor, with the PlayStation 2 version also allowing players to play as Devil May Cry's Dante.
