Black Virus: Bowser 1 - 3 Stars + Both Keys [savestateless] 

0:00 Top Star
8:43 Metal Box Star
15:32 Alcove Star
22:10 Key 1
30:52 Key 2
The perfect example that you don't get better the more time you spent on something. Somehow I first tried the first and hardest star after the first wallkick. The second star also went really well, but the third star took me more than twice as long as the first 2 stars combined.
And then the key took me more than twice as long as the first 3 stars combined. Was quite frustrating, but I am glad this is done, since I ran away from this level for quite a while, since I just couldn't get that rng check part at all at first.