- Butt-Ugly Martians: "what if... the Koo Foo gave Angela a parting gift" (Episode Meet Koo Foo)
just before the Koo Foo left earth he gave Angela a golden bracelet with gems and engravings upon it, at first she thinks it is just a really fancy bracelet so she doesn't mention it to the others, but next time her life is threatened the bracelet expands over her entire arm from finger to shoulder, coating it in armour, she uses it to fend off the threat and help her friends, with the bracelet returning to normal afterwards.
once back at the arcade 2T examines the bracelet and explains that it is a rare and powerful Koo Foo battle tool, it can only be given by a Koo Foo and not taken, it is also only given to those they respect, it is unheard of for them to give it to those outside of their own kind, so Angela should be proud to have been gifted it, they go on to help her train with it, finding it can become a full armour and not just partial armour as well as create weapons and tools to be used, all of which she uses to help her friends.
