This may help.
Credit to the amazing binary.
The bonding level you see on the status screen is from 0% to 100% in steps of 10%. Internally, bonding is measured on a scale of 0 to 999 points.
CODE
Points Stat Rating
------- ---- -------
0- 99 0% low
100-199 10% low
200-299 20% low
300-399 30% low
400-499 40% medium
500-599 50% medium
600-699 60% medium
700-799 70% medium
800-899 80% high
900-998 90% high
999 100% high
You can increase bonding points by...
Playing the Golf Putt game or the Shoe Pairs game. (Note: these games are unlocked once your Tamagotchi reaches second generation.) The number of bonding points you get from playing these games depends on your score.
CODE
Golf Putt Shoe Match
Score Points Score Points
----- ------ ----- ------
0- 2 0 0- 2 0
3-12 2 3- 8 2
13-24 8 9-14 8
25-29 14 15-19 14
30 20 20 20
Playing a connection game with another Tamagotchi. The winner of a connection game is rewarded with 5 bonding points. To get 100 bonding points, you need to win 20 connection games. The chances of winning are 50-50, so you will probably have to play about 40 connection games in order to increase bonding by 10%. But that's not so bad because if you've used the same two Tamagotchis for all the connection games, when you're done you will have increased the bonding by 10% on both of them.
Using certain items. Some items reward bonding points when you use them. To get 100 points, you need to use a 1-point item 100 times, or a 3-point item 34 times. After that, the bonding level you see on the status screen will go up by 10%.
CODE
Points Item
------ -------------------
1 campfire
1 textbook
1 cracker
1 DVD
1 aquarium
1 disco ball
1 stereo system
3 Unchi-kun
3 Gotchi King DVD
3 Magokorotchi
Click here to see what these items look like. Click here to see the topic about how to get these items for free.
Providing your Tamagotchi with training when they call for it. It's random whether they call for training or not, but if they do call for training it will be at the top of an even-numbered hour; 10:00 AM, 12:00 PM, 2:00 PM, 4:00 PM, or 6:00 PM. You will receive 40 bonding points every time you train your Tamagotchi. We haven't found a daily maximum number of points you can earn by training, so if you want to cheat, an easy way to gain bonding points quickly is to repeat this process several times: {set your Tamagotchi's clock to 1 minute before one of these times, wait 1 minute, respond when it calls for training.}
You can lose bonding points by...
Not providing your Tamagotchi with training when they call for it. When they call for training, the training icon will activate. If you don't respond within 15 minutes the training icon will turn off, and you will lose 10 bonding points.
