Thunder Arrow



Thunder Arrow is one of Knuckles the Echidna's special moves in Sonic Adventure 2 and Sonic Adventure 2: Battle. Unlike most of Knuckles' other techniques, he can only perform this move when he is played in the game's two-player mode and has gathered enough rings (He also uses it during his battle with Rouge onboard the Space Colony ARK, but only as a boss in the Dark story). It is a lightning bolt of Chaos Energy that Knuckles strikes his opponent with.

Usage
In Sonic adventure 2's gameplay, Knuckles can only use the Thunder Arrow technique when he is played in the game's two-player mode, where two players races each other in a hunt to collect most of the Master Emerald's Emerald Shards.

To perform Thunder Arrow, Knuckles has to collect at least 40 rings. As soon as he has done that, he can use Thunder Arrow unrestrained. When using this move, Knuckles shouts "Take this" and will form several lightning bolts of Chaos Energy above the opponent and strike him/her with them. This not only causes the foe damage, but also make the opponent disorientated. This move is nearly impossible for the foe to escape, unless the other player is Metal Sonic, who can use his shield to protect himself from these type of attacks.

Sonic the Hedgehog (Archie)
The Thunder Arrow move has also appeared several times in Archie's Sonic the Hedgehog.

In this media, it is similar in appearance to the Chaos Spear, but the user rather summons them in bursts of energy than throwing them as spears. The Thunder Arrow is commonly used by characters that have have a strong connection to the Chaos Force, such as Knuckles the Echidna, Enerjak and Edmund (P.X.E), and acts as a Chaos-powered, arrow shaped lighting bolt that electrocutes its victims.

During the battle between Super Sonic and Knuckles in his Enerjak-persona, Knuckles tried to defeat Super Sonic by hitting him with Thunder Arrow, but could not harm him because Super Sonic was invincible. He later used this technique again, against Dr. Finetivus in a battle with Chaos Energy on Angel Island. The future guardian Edmund from Silver the Hedgehog time also demonstrated the use of Thunder Arrow when he attacked Prelate-V.