I probably didn't HAVE to use a guide to find the 3 gems I was missing in chapter 7. I figured it would be one gem per section, and if I had more time I would've been able to just look closely at each room to find the hidden passage... The first gem was kinda hard to find, and involved another "abuse screen transition to dash to a high place" puzzle... The chapter 2 gem and missing strawberries was a matter of paying more attention to the walls and look for places that might hide a secret passage. I also missed a strawberry right before the end of the chapter 4 section where touching the last purple orb will force you into the next section... the Chapter 5 gem was easy to find after getting the missing strawberry near the beginning.
Chapter 7 B-side
The first part wasn't that bad, but then when I got to the space blocks part, I was really bad at these rooms, it felt like I was spending like 100 lives on each room... the mold dodging parts were tricky but not too bad... the windy sections were SO hard and I was actually starting to get annoyed for a bit there...
The mirror dungeon parts were very hard but in a fun way... and then the final 500m it got to a whole other level of difficulty, although it still didn't feel as bad as the space blocks part. Surprisingly this level didn't use gold feathers at all, and was mostly just lots of cloud platforms and wall jumping and precise dashes... and it even starts making you wall jump off of falling platforms while they're falling.
And then at the last 5 checkpoints it started making you do this new technique where you wall jump while in the middle of a dash so you can jump a lot higher with a single dash that way. It's very tricky to get in the right position to do an upward dash where you can then wall jump during it, and these sections make you do it a few times in a row. It added another section after reaching the peak, the typical beatblock room that's at the end of every B-side... That was really fun.
Pico-8 2nd attempt. I think I got all of the strawberries this time but I could be wrong. This mode feels so easy now compared to the real game's B-sides.