Red Sun and Blue Moon

Red Sun (メテオレッドサン) and Blue Moon (ブルームーンレイ) are Battle Chips from the Mega Man Battle Network series. They first appeared in Mega Man Battle Network 4, each in the version of same name, being given by Yuichiro Hikari near the end of the game. Both appear in Rockman.EXE 4.5 Real Operation, where they can be obtained from StarMan SP with S level in the Undernet tournament.

Red Sun
Red Sun summons a fiery orb that releases four meteors in the third panel in front of the user and than crashes on it, cracking all adjacent panels. Each meteor does 100 damage, and it increases depending of the number of wins in the Red Sun vs. Blue Moon link battles.

Blue Moon
Blue Moon summons a blue satellite that fires a powerful laser in the third panel in front of the user. At first the beam does 200 damage, and it increases depending on the number of wins in the Red Sun vs. Blue Moon link battles. Blue Moon can also hit Invisible opponents and uninstalls a random Navi Customizer program on the opponent if applicable.

Trivia

 * Using the toy Red Sun or Blue Moon chips with the Battle Chip Gate in Mega Man Zero 3 unlocks some of its minigames.