Well it depends on the tamagotchi. What kind do you have?
The ir sensor is used in robot's as a input signal. what kind of use u want in ur project of ir sensor
a 4.0 can connect with a 4.5 and a 4.5 can connect with a 5.0 and a five can connect with with a 6.0 basicly the newest tamagotchi can connect with the second newest
All Tamagotchis require a CR2034 battery.
You can't use your souvenirs, it's a decoration thing-MKM
you go to the shop and buy the ticket then go online and do somthing. Help