eternal sierra
Concentration: yellow, sound-based, retro
Brainstorming w/ my brothers: fitness planet, freedom planet, earth, solar system
SCAMPER: regarding Deadlocked, maybe you could play more into the monster part of it. Like recruiting monster to assist you in an upcoming boss fight, or the difficulty progression of the entire level depends on the number/type of monsters you recruit (starting from a demon level and decreasing from there)
Ramsey: elements that make a star, nuclear reactions, r-process (cool name)
https://news.clas.ufl.edu/record-setting-star-offers-clues-about-the-origins-of-heavy-elements-found-on-earth/
main gust