Every level in this demo has 7 stars
There are no 100s
Reds are star 7
Reds don't take you out of the level
Secrets also don't take you out of the level, that's a bug and it will be fixed in final release
Cap switch level isn't final, not all caps will be available from c1 in final release
Course 4 is a scrapped level and should be treated with that respect
This demo isn't an accurate depiction of the final game's difficulty
If you feel like something is too cryptic and requires an explanation let me know
Good luck