The following is a list of kaiju in the 'Monster Island' universe, along with their 'real world' equivalent. Most come from Toho Studios films, but a few are derived from Hollywood productions:
Atomic Soldier -
The Amazing Colossal Man
Honu - Gamera
Kajiro - Godzilla
Kharsa - Rodan
MechaKajiro - MechaGodzilla
Nijira - Mothra
Nyani Mkubwa - King Kong
Serpente - Manda
Tigan - King Ghidorah