Read the description. This isn't his first playthrough; he's already completed the Challenges for beating a stage, then beating a boss without taking damage. The only way to get the Challenge completion notices to appear again would to be erase the Challenges part of his game data which he definitely wouldn't do for random people on RUclips.
Practice makes perfect! Galaxy Man, Splash Woman, Concrete Man and Jewel Man are all very easy to take out with just the Mega Buster.
Read the description. This isn't his first playthrough; he's already completed the Challenges for beating a stage, then beating a boss without taking damage.
The only way to get the Challenge completion notices to appear again would to be erase the Challenges part of his game data which he definitely wouldn't do for random people on RUclips.
The floating eyes remind me of The Seer in the webcomic "Kid Radd".
No... damage... holy crap...
dodge man!