The safehouse, the hideout Allen was placed in wasn't much. An environment that allowed safety,  and survival at barely above minimal condition.  With no other way to entertain himself, and loneliness he started turning off the lights with his powers before turning them on before repeating  it. That was the closest thing he had to a game.  When he glanced out of the window he grinned at first but his expression changed as he started asking questions

"What day is it?" When you answered he responded with how long he was stuck there." 4 months...You really looked for me, for four months? I can't believe you found this place..."