i reckon for the game esf the resenko dan as energy balls shoul;d have a new touch.
so for primary fire u could ass unaccurate fast firing energy balls and for the secondary fire they could charge up a hand beam like in the episodes and stuff.
so it could be like a combo if the enemy is weak u keep firing rezenkou dan at them it would mostly stun them then u charge up a super hand beam and take them out i woudl say fast charging but its kinda weak