Reebooting constently when I play a game, the console reboots. What do I have to change within the console for it to stop

Once, I spilled juice on ours. it worked fine, but I had to replace the switch on my system because it was constantly engaged. If you really want to fix it, take it apart and clean the switch for RESET. if that doesn't help, look for damaged wires, a broken switch, or other problems. I hope this helps.

If you take the n64 apart you can clean it like hidn_shadows said but if u spill something on it put parts of the n 64 in rice this will **** up the juice...but when a system reboots itself there is an error in the software in the system you see a n64 is like a computer but a simple software and when it reboots it acts like it is going to fix it but since this is not possible for a n64 it keeps rebooting itself you may want to contact nintendo at nintendo.com they will help you further...hope this helps.