Dead Moon:
-Red weapon + spinning shields for most of the game, but green weapon for most bosses... I usually use the Red weapon for the skeleton boss of level 6 (because of the wide spread and high damage rate), then change to the Green weapon right before the final boss (penetration powa!)
Lords Of Thunder:
-Earth Armor for everything but Dezant, Fire Armor for Dezant
Gate Of Thunder:
-Earthquake for 99% of the game; Sonic Boom for the diagonal descent in Crown, Lightning for the back attacks in Base and Crown Core
Sidearms:
-Shotgun for almost the entire game; MBL for the bosses of levels 4, 6, 7, and 8; three-way for the level 9 boss
Blazing Lazers:
-Weapon III + shields
Air Zonk:
-The Cards and the Lightning Bolts