When the Character battle step starts, treat R3-S6 as a Light Side unit.
R3-S6 can't attack or be attacked unless your opponent pays 2 Force.
Your opponent's units lose Stealth.
Your opponent plays with his or her hand revealed.
Keywords
Stealth
Stealth: An isolated, static ability that means, "This unit can't be attacked unless it's tapped or has damage counters on it." An untapped and undamaged unit with Stealth can still be affected by alternative types of damage. (Such as Overkill.) As long as the unit has any number of damage counters on it, it can't use Stealth.