Megatouch Force 2002

[doorsmaniac]

I was lucky enough to get my hands on a Megatouch force 2002.  It seems all original and works (mostly)  I do have some questions maybe you can all help with. 

1. I plan on replacing fans (case and otherwise) thermal paste an give it a good cleaning.  Is there other things you would suggest to get a longer life out of it? 
2. Ive read about going keyless.....buit not sure i understand what it actually is or how to do it.  can you explain this to me?   maybe give me links of where to start if i decide to go that route?
3.  I have noticed some games just wont let me record a High Score.  Once I get the high score and its about to send me to the screen where i enter my name, it reboots.  Unfortunatly i will never haold the high score on Hoop Jones.  There is maybe one other game that does it.  I would love to keep the scores from the previous owner as it gives me something to reach for.  Is there anyway i can fix this without a drastic measure like reinstalling etc. ?

Thank you all in advance.