Simply Put I rate Vanilla Episode a 1/10. Usually I'd give more leniancy for episodes but since the creator has been around for about 10 years, I am giving this a 1/10.
Vanilla Episode is a star hunt where there's 10 stars per level. One of the main problems is that although there are indicators, most of the indicators are really vague and not fun to deal with if you don't want to look at every single BGO while playing. There are also some stars that require you to fall randomly are hit invisible blocks. In addition, some of the stars in the levels aren't accessible until you can play the 7th level, meaning this is just very unfun.
Also the two bonuses at the end were really obnoxious and brought my score down from a 2/10 to a 1/10. The first bonus is a five minute level where there's a bunch of enemy spam but it also gives you powerups. Giving powerups to negate the difficulty of enemy spam makes the area not frustrating but doesn't change the fact that the enemy spam in the first place is god awful design. The last area, there's so many projectile generators they legit hurt my ears while playing. For this reason, I'm giving this episode a 1/10 and recommend that no one plays it.