Devils and Fusing
Megaten Gold is the conditions for negotiations with devils. Fusing takes place at the Joyous Manor whose icon is a purple circle with markings all over it. Most of you will be familiar with devil fusing, so I will just start with a few notes about differences between fusing in the SMT series and SMT Imagine Online, followed by some general fusing notes.
While you can still fail your fusing, your devils do not die if you fail, you just lose your fusing fee. You also do not accidentally create blobs of slime. The fee for fusing is tiny. So you do not worry about losing money on loads of failures. The fee is displayed at the start of fusion along with the percents chance of success, so you do not worry about this.
Many devils can be negotiated with and captured outside of towns without having to fuse them. However, your devils will retain skills from the devils which you use to fuse them, and thus you are ending up with better skills than if you had just caught it from the wilderness.
These skills take time to actually become available to your devil; your devil needs to take similar damage from other mobs, or use similar skills for the percents bar to fill and the skill become available for use. There is no upkeep fee for summoning your devil, only an initial summon fee. You cannot fuse or negotiate with a devil higher than your level
You have to keep negotiating with the devil until one of several actions occurs. It disappears, it gets angry and attacks you, it disappears and leaves you a green box with a gift inside, or it turns into an egg. Some demons can call a truce/cease-fire; they will simply stop attacking you, and if you try talking to them they will say the same thing.
When a demon turns into an egg, that means you convinced it to come with you, so you can take it into your arm comp.