Sacred Elements

The Sacred Elements are four relics from Frogger's dimension that keep Firefly Swamp alive, the elements themselves being fire, earth, water, and wind. In the past they have been stolen by Mr. D and dispersed throughout various worlds, before being recovered again by Frogger and used against Mr. D, vanquishing him ("Frogger's Adventures: Temple of the Frog"). In the "Dimension" saga, they are shown to be small capsules that, when opened, emit powerful surges of the elemental energies contained within; moreover, they serve as the target objects for both the group and Mr. D during "Dimension Takeover."

SEARCH FOR THE SACRED ELEMENTS
An unseen incident between Frogger and Mr. D has led to the dispersal of the four sacred elements throughout the alternate dimensions, having disappeared immediately as Frogger touched them, apparently. Mr. D seeks to reacquire these elements, and assumes that Frogger's inter-dimensional allies have them, or at least know of their location; yet, he later learns that this is not the case. Shortly after Dinosaur Land's Downfall, the group learns all about the sacred elements from Frogger, and Dib contacts the Swollen Eyeball Network, whose agents are able to locate the first element— that of fire, which resides in the Icecaps in Sonic's dimension.

ICECAP BRAWL
The fire element gives off vast amounts of heat from underneath the ice, leading the group to determine its location. While traveling through the ice caves below, they suddenly come across Mr. D, along with his henchmen, Treeby and Tank, also seeking the fire element; battle follows, and eventually the element is discovered by Sonic, stuck in a frozen wall. However, Mr. D summons it first and harnesses its power, before opening the capsule and unleashing deadly blasts of fire everywhere, causing the group to scatter and the ice caves to begin melting. Mr. D continually uses the fire element as a weapon while battling the group, until they are finally forced to escape empty-handed, allowing Mr. D to retain possession of the fire element for the time being.

STRUGGLE IN SANDOPOLIS
Following the Icecap Brawl, Calvin creates an Element Radar using all of the information given to him by Frogger regarding the sacred elements; this allows the group to locate the wind element in Sandopolis, another area in Sonic's dimension. At first it is difficult to find, but in the end, the element appears in the underground tomb atop the rising sand, prompting Sonic to jump down from a ladder and attempt to acquire it before Mr. D, who has continually been using his fire element to turn obtrusive sand into shattered glass while giving chase. The two fight for a short amount of time before Sonic grabs the wind element and uses it to blow a ray of fire back toward Mr. D, who is instantly set ablaze. Sonic and his allies escape then, with one sacred element now in their possession.

THE BATTLE AT SUBCON
The water element is located in Subcon, an area in Mario's dimension, and is found and used by Wario and Waluigi, who cause a flood throughout the land so that they may look for treasure in the caves. Later, they are forced to defend their element from the group, but it is shortly taken by Frogger, who delivers it to Sonic, who throws it to Amy and Bill. They try to figure out how to stop the flood, but are suddenly attacked by Treeby and Tank, who attempt to steal the water element from them; the water rises higher and higher, as Bill occasionally uses the element to shoot jets of water toward the frogs to keep them at bay.

Meanwhile, Mr. D appears in the caves, still in possession of the fire element, which he uses still to shoot flames at his enemies. The group attempts to reclaim the element, but is soon forced to fend for their lives as Mr. D causes a fiery explosion on the ceiling, forcing water from the flood to begin pouring into the cave from above. As the water rises, Sonic decides to use the wind element once more, to blow Mr. D backward and force him to release the fire element; Sonic catches it and blasts a hole in the wall, allowing the group to escape the flooding cave, with three elements now in their possession.

ASSAULT IN BOULDER ALLEY
Tak contacts the group on the Element Radar, claiming to have the final element, that of earth; she demands that they hand over the other three, but states that this is "not for reasons [they] may think..." The team is coerced into meeting her at Boulder Alley, in Frogger's dimension, and they give Tak the other three elements in addition to her fourth; but suddenly, Tak uses the earth element to trap everyone in the ground, so that they do not attempt an uprising. Some time afterward, however, Mr. D and his henchmen arrive to reclaim the four elements, and he and Tak engage in combat for them. Sonic is freed in the struggle and he picks up the earth element, intending to free his allies, but drops it as he is attacked by Wario, Waluigi, Treeby, and Tank; at the same time, Mr. D summons the water element and uses it against Tak (knowing of Irken vulnerability), in one instance causing a geyser right where she is standing, just before she narrowly dodges it.

Next, the two of them race for possession of the earth element that Sonic dropped, but Tak shoots it out of Mr. D's grasp with her Irken handgun, and upon landing on the ground, it activates and frees the rest of the group. Sensing danger, Tak sends the other two elements, fire and wind, to MIMI in the Nazca Lines. Meanwhile, Mr. D picks the earth element up again and creates an avalanche; countless boulders begin falling from above and crashing onto the ground, causing everyone to run away. As the avalanche persists, one large boulder lands on Frogger, who struggles to push it off of himself, and Treeby and Tank, having changed loyalties, suddenly hop in and destroy the boulder. Both the group and Tak eventually escape, and Mr. D is left with two elements, water and earth— but two still missing.

NAZCA LINES INFILTRATION
MIMI takes the other two elements to the Destroyers, and powers the weapons systems with fire and wind. As the war carries on in the Nazca Lines, the Destroyers soon begin unleashing tremendous blasts of each elemental power toward the group; flames engulf the land, while the wind pushes them toward everyone, heavily obstructing their path. Mario and Luigi, however, are able to use a Fire Flower to run through the flames, in order to reach the secret weapon. Meanwhile, Calvin and Hobbes use the Element Radar to track down the elements, and they both enter each Destroyer to reacquire them. As Hobbes fights off several Xevians, Calvin battles MIMI, until at last, both the fire and wind elements are removed from the Destroyers' weapons systems and back in the possession of the group.

MR. D'S ULTIMATUM
Just as the group reclaims the fire and wind elements, Mr. D suddenly arrives, along with Wario and Waluigi, who take the two elements back from Calvin and Hobbes and deliver them to Mr. D; all four sacred elements are now in his hands, and he absorbs all of the power at once, taking the shape of a hideous supernatural being while doing so. He begins laying waste to the land, by summoning wildfires, creating tornadoes, causing floods, and bending the landscape to his will. As the group tries to fight Mr. D, he easily uses the four elements to toss them aside, using waves and gigantic boulders, for example, and in some instances creating large icicles in an attempt to impale his targets. Jets of black fire, however, manage to land on the colossal outline of a hummingbird in the ground, which causes the secret weapon to appear; Sonic and Hobbes discover that the weapon happens to require the four elements in order to be activated.

ACTIVATION OF THE SECRET WEAPON
Sonic lends the seven chaos emeralds to Frogger, who uses their power to finally put up a fight against Mr. D. His elemental powers now do little to keep the enemy at bay; flames are shattered, boulders are destroyed, floods are easily swum through, and high winds are unable to blow Frogger away. Ultimately, Mr. D loses the four sacred elements to Frogger, but at the same time, a gigantic flame rids Frogger of the chaos emeralds. Both sets of trinkets then land atop the secret weapon, which suddenly activates. The combined powers create a large barrier that is able to encase the entire region, as well as the planet; at the same time, the surge of energy pulls in several Xevian ships, SOL towers, and Mr. D, instantly destroying them all (Wario and Waluigi are pulled in also, but they are transported out of the Nazca Lines just in time). Finally, after the barrier is in place and the group has escaped, immense blasts of fire, oversize twisters, and elemental catastrophes of every kind begin decimating the remaining Xevian forces.

Currently, the four sacred elements are still inside the secret weapon, along with the chaos emeralds, keeping the barrier activated and protecting the planet from further incursions.