2003 Mongoose K.O. Team Issue

My 12 y.o. son's bike that was given to him by a friend...a Chinese made Walgoose, but a "good" one

Update:
Decals still mostly intact . Chain and brakes detached. Son wasn’t interested in fixing. Needs work.
Original Post before Sale:
Thought it a good idea to get this thing documented before the surface got destroyed, LOL.  Very heavy. Sucky brakes, but these are the longest lasting tires and tubes I have EVER seen on a bike....still original and no sign of cracking. Never needs air.