Well in that case, Sandalphon is the choice for Asuka, as that's the only angel she killed all by her own without almost anyone's help. Shinji was inside the entry plug in the battle of Gaghiel, Rei killed Arael. There's a wide array of choice for Shinji (Sachiel, Shamshel, Leliel, Bardiel, Zeruel, Tabris), Armisael for Rei.
But then again, when you call it
Tamagotchi, you should use the character, not the angel they killed. Though that would be like the Raising project games on tamagotchi.
Now, angel's can't eat, shit or anything. Character ones would be kinda weird. A Penpen one would've been the obvious choice, as he's something that can be called as a pet.
EvaGeeks at its finest: discussing whether or not a 14 yo girl has breast implants and how they should look. ~Shamsiel-kun
Sometimes I secretly think the reason I'm an A/S shipper is because I want Rei for myself. ~Chuckman
Eew, penis and testicles, gross! ~Reichu
My dude, "cross, crucifix, troubles, back, rood, buttock" sounds a lot closer to classic Evangelion than just one stray buttock roaming around in the film. ~FreakyFilmFan4ever