The powers of the Blue Javelin are basically the same as Judge Spear, only that in the Raiden Fighters series: it's sub-weapon is Burst Concussion Missiles, and the Judge Spear's is Napalm missiles. It also has more spread and less speed than the Judge Spear in the RF series.
Viper Phase 1: The Blue Javelin's debut is Viper Phase 1, along with it's red cousin, Judge Spear.
Raiden Fighters series: It also made a cameo, along with Judge Spear, in Raiden Fighters 2: Operation Hell Dive and Raiden Fighters Jet. It's strength was the same as Judge Spear's, but had a different weapon set from the Judge Spear, and had slightly higher defense than Judge Spear.
|Interstellar Fighters||Raiden Supersonic Attack Fighter, Raiden mk-II, Raiden mk-IIβ, Judge Spear, Blue Javelin, Dark Sword, Fighting Thunder ME-02, Fighting Thunder ME-02β, Azuma, Spirit of Dragon, Moulin Rouge|
|Generation 1 Classic Fighters||Aegis, Beast Arrow, Devastator, Chaser, Endeavor|
|Generation 2 Classic Fighters||Aegis IV, Chaser 2000, Beast Wing, Death Header, Flying Ray, Eraser, Griffin, Aegis II-c|
|Experimental Fighters||Hell Diver, Ixion|
|Living creatures||Miclus, Fairy|