can anyone tell me how to unlock blaines gym i cant figure out how and i would really like some help.

you have to find the key in the mansion on cinnabar island

where abouts is the key as i have looked every where and i cant figure out how to get all the doors open in the mansion. I think i know where i am supposed to go but i cant get there

On the third floor, at the bottom wall, there is a Scientist in front of three squares of wall-less area, wplit into two squares wide on the left, and one square on the right. If you walk off the edge with the two-square wide drop, you will fall to an area with a stairs down. Follow that area to the end and you will find the Secret Key.

speaking of blaine here is a picture i made a long time ago

why did blaine call gary his son?